List of asteroid close approaches to Earth in 2020

	Asteroid discoverers by count
	<imagemap> File:Circle frame.svg\|300px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 20 40 100 100 Mount Lemmon Survey (G96): 42 (39.6%) poly 100 100 20 40 19 41 18 43 17 45 15 46 14 48 13 50 12 52 11 53 10 55 10 57 9 59 8 60 7 62 6 64 6 66 5 68 4 70 4 72 3 74 3 76 2 78 2 79 1 81 1 83 1 85 0 87 0 89 0 91 0 93 0 95 0 97 0 99 0 101 0 103 0 105 0 107 0 109 0 111 0 113 1 115 1 117 1 119 2 121 2 123 3 125 3 127 4 129 4 130 100 100 Pan-STARRS 1 (F51): 16 (15.1%) poly 100 100 4 130 4 132 5 134 6 135 6 137 7 139 8 141 9 143 10 145 11 146 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 25 168 27 169 28 171 30 172 31 173 32 175 34 176 36 177 37 179 39 180 40 181 42 182 43 183 45 184 47 186 49 187 50 188 51 188 100 100 Catalina Sky Survey (703): 13 (12.3%) poly 100 100 51 188 53 189 55 190 57 191 58 192 60 192 62 193 64 194 66 195 68 195 70 196 71 196 73 197 75 198 77 198 79 198 81 199 83 199 85 199 87 200 89 200 91 200 93 200 95 200 97 200 99 200 101 200 103 200 105 200 107 200 109 200 111 200 113 200 114 199 100 100 ATLAS-MLO (T08): 11 (10.4%) poly 100 100 114 199 116 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 134 194 135 194 137 193 139 192 141 191 143 191 145 190 146 189 148 188 100 100 ATLAS-HKO (T05): 6 (5.7%) poly 100 100 148 188 150 187 151 186 153 185 155 184 156 183 158 182 160 180 161 179 163 178 164 177 166 175 167 174 169 173 170 171 171 170 100 100 Tokyo-Kiso (381): 5 (4.7%) poly 100 100 171 170 173 169 174 167 175 166 177 164 178 163 179 161 180 159 181 158 183 156 184 155 185 153 186 151 187 149 188 148 188 146 100 100 Pan-STARRS 2 (F52): 5 (4.7%) poly 100 100 188 146 189 144 190 143 191 141 192 139 193 137 193 135 194 133 195 131 195 129 196 128 196 126 197 124 197 122 198 120 198 118 100 100 Zwicky Transient facility (I41): 5 (4.7%) poly 100 100 198 118 198 116 199 114 199 112 199 110 199 108 199 106 100 100 Purple Mountain Observatory (D29): 2 (1.9%) poly 100 100 199 106 199 104 199 102 200 101 100 100 L. Buzzi (no code): 1 (0.9%) desc none </imagemap> Mount Lemmon Survey (G96): 42 (39.6%); Pan-STARRS 1 (F51): 16 (15.1%); Catalina Sky Survey (703): 13 (12.3%); ATLAS-MLO (T08): 11 (10.4%); ATLAS-HKO (T05): 6 (5.7%); Tokyo-Kiso (381): 5 (4.7%); Pan-STARRS 2 (F52): 5 (4.7%); Zwicky Transient facility (I41): 5 (4.7%); Purple Mountain Observatory (D29): 2 (1.9%); L. Buzzi (no code): 1 (0.9%);

Other Years
	Time of discovery of asteroids which came closer to Earth than the Moon in 2020
<imagemap> File:Circle frame.svg\|300px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 161 100 100 After closest approach: 64 (60.4%) poly 100 100 20 161 21 163 23 164 24 166 25 167 26 169 28 170 29 172 31 173 32 174 34 176 35 177 37 178 38 180 40 181 41 182 43 183 45 184 46 185 48 186 50 187 52 188 53 189 55 190 57 191 59 192 61 193 63 193 64 194 66 195 68 195 70 196 72 197 74 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 91 200 100 100 < 24 hours before: 14 (13.2%) poly 100 100 91 200 93 200 95 200 97 200 99 200 101 200 103 200 105 200 107 200 109 200 111 200 113 200 115 199 117 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 134 194 136 194 138 193 139 192 141 191 143 190 145 190 147 189 148 188 150 187 152 186 154 185 155 184 157 182 159 181 160 180 162 179 163 178 165 176 166 175 168 174 169 172 171 171 172 169 173 168 175 166 176 165 177 163 179 162 180 160 181 159 182 157 183 155 184 154 185 152 186 150 187 148 188 147 189 145 190 143 191 141 192 139 192 138 193 136 194 134 194 132 195 130 196 128 196 126 197 124 197 122 198 120 198 118 198 116 199 114 199 112 199 112 100 100 up to 7 days before: 26 (24.5%) poly 100 100 199 112 199 110 199 108 199 106 199 104 199 102 200 101 100 100 > one week before: 2 (1.9%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap> After closest approach: 64 (60.4%); < 24 hours before: 14 (13.2%); up to 7 days before: 26 (24.5%); > one week before: 2 (1.9%); > 7 weeks before: 0 (0.0%); > one year before: 0 (0.0%);	2018, 2019, 2020, 2021, 2022
	2018, 2019, 2020, 2021, 2022

Prediction accuracy for asteroids of magnitude 27 or larger predicted to pass within 1 lunar distance of Earth in 2020^{[note 1]}
<imagemap> File:Circle frame.svg\|300px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 34 176 36 177 37 179 39 180 40 181 42 182 44 183 45 185 47 186 49 187 50 188 52 189 54 190 56 190 58 191 59 192 61 193 63 194 65 194 67 195 69 196 71 196 73 197 75 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 100 200 102 200 104 200 106 200 108 200 110 200 112 200 114 199 116 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 134 195 135 194 137 193 139 192 141 191 143 191 145 190 146 189 148 188 150 187 152 186 153 185 155 184 157 183 158 181 160 180 161 179 163 178 165 176 166 175 167 174 169 172 170 171 172 170 173 168 174 167 176 165 177 164 178 162 180 160 181 159 182 157 183 156 184 154 185 152 186 150 187 149 188 147 189 145 190 143 191 142 191 140 192 138 193 136 194 134 194 132 195 130 196 128 196 127 197 125 197 123 197 121 198 119 198 117 198 115 199 113 199 111 199 109 199 107 199 105 199 103 199 101 200 101 100 100 Unpredicted: 22 (100.0%) poly 100 100 200 101 200 101 100 100 Predicted but not observed: 0 (0.0%) poly 100 100 200 101 200 101 100 100 Observed but details incorrect: 0 (0.0%) poly 100 100 200 101 200 101 100 100 Distance correct but not date: 0 (0.0%) poly 100 100 200 101 200 101 100 100 Date correct but not distance: 0 (0.0%) poly 100 100 200 101 200 101 100 100 Successfully predicted: 0 (0.0%) desc none </imagemap> Unpredicted: 22 (100.0%) Predicted but not observed: 0 (0.0%) Observed but details incorrect: 0 (0.0%) Distance correct but not date: 0 (0.0%) Date correct but not distance: 0 (0.0%) Successfully predicted: 0 (0.0%)

Below is the list of asteroid close approaches to Earth in 2020.

Timeline of known close approaches less than one lunar distance from Earth

A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2020.^{[note 2]}

For reference, the radius of Earth is about 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 lunar distances. Geosynchronous satellites have an orbit with semi-major axis length of 0.000282 AU (42,200 km; 26,200 mi) or 0.110 lunar distances. A number of known asteroids came closer than this in 2020, notably 2020 CW, 2020 JJ, 2020 QG, and 2020 VT4 which all approached Earth within 0.05 lunar distances.

Two objects have been observed to be temporary satellites of Earth: 2020 CD3 in February 2020 and 2020 SO in September 2020, albeit the latter has been confirmed to be a rocket booster from the Surveyor 2 mission launched in 1966.^[1]

The largest asteroid to pass within 1 LD of Earth in 2020 was 2020 LD with an estimated diameter of around 145 meters and an absolute magnitude of 22.4. The fastest asteroid to pass within 1 LD of Earth in 2020 was 2020 FD₂ that passed Earth with a velocity with respect to Earth of 33.4 km/s (75,000 mph).^[2]^{[note 3]}

Rows highlighted red indicate objects which were not discovered until after closest approach

Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach

Rows highlighted green indicate objects discovered more than one week before closest approach

Rows highlighted turquoise indicate objects discovered more than 7 weeks before closest approach

Rows highlighted blue indicate objects discovered more than one year before closest approach (i.e.
objects successfully cataloged on a previous orbit, rather than being detected during final approach)

Date of closest approach	Date discovered	Object	Nominal geocentric distance^{[note 4]}		Approx. size (m)	(H) (abs. mag)	Closer approach to Moon^{[note 5]}	References^[3]^[4]
Date of closest approach	Date discovered	Object	(AU)	(Lunar distance)	Approx. size (m)	(H) (abs. mag)	Closer approach to Moon^{[note 5]}	References^[3]^[4]
2020-01-02	2020-01-04	2020 AP1	0.002185 AU (326,900 km; 203,100 mi)	0.85	3.2–7.1	29.6	✓	data · 2020 AP₁
2020-01-20	2020-01-22	2020 BK₃	0.001998 AU (298,900 km; 185,700 mi)	0.78	11–24	27	—	data · 2020 BK₃
2020-01-22	2020-01-23	2020 BB₅	0.001775 AU (265,500 km; 165,000 mi)	0.69	3.1–6.9	29.8	—	data · 2020 BB₅
2020-01-25	2020-01-24	2020 BH₆	0.000469 AU (70,200 km; 43,600 mi)	0.18	5.2–12	28.5	—	data · 2020 BH₆
2020-01-27	2020-01-28	2020 BA₁₃	0.001320 AU (197,500 km; 122,700 mi)	0.51	4.6–10	29	—	data · 2020 BA₁₃
2020-01-28	2020-01-30	2020 BA₁₅	0.002517 AU (376,500 km; 234,000 mi)	0.98	9–20	27.5	✓	data · 2020 BA₁₅
2020-01-29	2020-01-28	2020 BZ₁₃	0.000716 AU (107,100 km; 66,600 mi)	0.28	2.9–6.5	29.9	—	data · 2020 BZ₁₃
2020-01-31	2020-02-02	2020 CZ	0.002105 AU (314,900 km; 195,700 mi)	0.82	3.7–8.2	29.4	—	data · 2020 CZ
2020-01-31	2020-02-02	2020 CJ	0.002362 AU (353,400 km; 219,600 mi)	0.92	11–25	27	✓	data · 2020 CJ
2020-02-01	2020-02-01	2020 CW	0.000105 AU (15,700 km; 9,800 mi)	0.04	0.83–1.9	32.6	—	data · 2020 CW
2020-02-02	2020-02-01	2020 CA	0.001465 AU (219,200 km; 136,200 mi)	0.57	3.2–7.2	29.4	—	data · 2020 CA
2020-02-03	2020-01-31	2020 BT₁₄	0.001256 AU (187,900 km; 116,800 mi)	0.49	7.5–17	27.8	—	data · 2020 BT₁₄
2020-02-04	2020-02-05	2020 CQ₁	0.000431 AU (64,500 km; 40,100 mi)	0.17	4.6–10	28.8	—	data · 2020 CQ₁
2020-02-13	2020-02-16	2020 DU	0.002172 AU (324,900 km; 201,900 mi)	0.85	4.9–11	28.7	✓	data · 2020 DU
2020-02-13	2020-02-15	2020 CD3	0.000315 AU (47,100 km; 29,300 mi)	0.12	1.2–2.8	31.7	—	data · 2020 CD₃
2020-02-14	2020-02-15	2020 CQ₂	0.000990 AU (148,100 km; 92,000 mi)	0.39	5–11	28.7	—	data · 2020 CQ₂
2020-02-18	2020-02-17	2020 DA₁	0.001294 AU (193,600 km; 120,300 mi)	0.50	3–6.7	29.7	—	data · 2020 DA₁
2020-02-18	2020-02-16	2020 DW	0.001612 AU (241,200 km; 149,800 mi)	0.63	2.3–5.1	30.3	—	data · 2020 DW
2020-02-25	2020-02-27	2020 DR₄	0.000622 AU (93,000 km; 57,800 mi)	0.24	3–6.8	29.7	—	data · 2020 DR₄
2020-03-14	2020-03-17	2020 FD₂	0.002190 AU (327,600 km; 203,600 mi)	0.85	19–43	25.7	—	data · 2020 FD₂
2020-03-18	2020-03-16	2020 FD	0.001715 AU (256,600 km; 159,400 mi)	0.67	7.9–18	27.6	✓	data · 2020 FD
2020-03-19	2020-03-23	2020 FG₄	0.001262 AU (188,800 km; 117,300 mi)	0.49	10–23	27.1	—	data · 2020 FG₄
2020-03-22	2020-03-19	2020 FL₂	0.000987 AU (147,700 km; 91,700 mi)	0.38	16–35	26.1	—	data · 2020 FL₂
2020-03-25	2020-03-24	2020 FJ₄	0.001716 AU (256,700 km; 159,500 mi)	0.67	3.4–7.6	29.5	—	data · 2020 FJ₄
2020-03-31	2020-03-31	2020 FB₇	0.000521 AU (77,900 km; 48,400 mi)	0.20	16–36	26.1	—	data · 2020 FB₇
2020-04-01	2020-04-02	2020 GO₁	0.000461 AU (69,000 km; 42,900 mi)	0.18	7.9–18	27.6	—	data · 2020 GO₁
2020-04-03	2020-04-02	2020 GH	0.000837 AU (125,200 km; 77,800 mi)	0.33	4.2–9.3	29	—	data · 2020 GH
2020-04-05	2020-04-05	2020 GY₁	0.000537 AU (80,300 km; 49,900 mi)	0.21	13–28	26.6	—	data · 2020 GY₁
2020-04-15	2020-04-16	2020 HO	0.001929 AU (288,600 km; 179,300 mi)	0.75	4.6–10	28.8	—	data · 2020 HO
2020-04-15	2020-04-11	2020 GH₂	0.002401 AU (359,200 km; 223,200 mi)	0.93	13–28	26.6	—	data · 2020 GH₂
2020-04-22	2020-04-24	2020 HM₆	0.001088 AU (162,800 km; 101,100 mi)	0.42	13–28	26.6	✓	data · 2020 HM₆
2020-04-22	2020-04-23	2020 HF₅	0.000979 AU (146,500 km; 91,000 mi)	0.38	12–27	26.7	—	data · 2020 HF₅
2020-04-22	2020-04-23	2020 HU₇	0.000869 AU (130,000 km; 80,800 mi)	0.34	3.1–7	29.6	—	data · 2020 HU₇
2020-04-24	2020-04-19	2020 HX₃	0.001688 AU (252,500 km; 156,900 mi)	0.66	9.8–22	27.2	✓	data · 2020 HX₃
2020-04-26	2020-04-27	2020 HT₈	0.000986 AU (147,500 km; 91,700 mi)	0.38	5.8–13	28.3	—	data · 2020 HT₈
2020-04-27	2020-04-22	2020 HP₆	0.000841 AU (125,800 km; 78,200 mi)	0.33	6.4–14	28.1	—	data · 2020 HP₆
2020-04-28	2020-04-27	2020 HS7	0.000286 AU (42,800 km; 26,600 mi)	0.11	4.1–9.2	29.1	—	data · 2020 HS₇
2020-04-30	2020-05-02	2020 JG	0.001429 AU (213,800 km; 132,800 mi)	0.55	19–41	25.8	✓	data · 2020 JG
2020-05-03	2020-05-01	2020 JA	0.001598 AU (239,100 km; 148,500 mi)	0.62	9.6–21	27.2	—	data · 2020 JA
2020-05-04	2020-05-04	2020 JJ	0.000090 AU (13,500 km; 8,400 mi)	0.03	2.7–6	30	—	data · 2020 JJ
2020-05-05	2020-05-04	2020 JN	0.001666 AU (249,200 km; 154,900 mi)	0.65	9–20	27.4	✓	data · 2020 JN
2020-05-28	2020-05-26	2020 KF₅	0.001652 AU (247,100 km; 153,600 mi)	0.64	3.5–7.8	29.4	—	data · 2020 KF₅
2020-05-28	2020-05-24	2020 KJ₄	0.000959 AU (143,500 km; 89,100 mi)	0.37	2.8–6.2	29.9	—	data · 2020 KJ₄
2020-05-29	2020-05-26	2020 KC₅	0.002470 AU (369,500 km; 229,600 mi)	0.96	9–20	27.4	—	data · 2020 KC₅
2020-06-05	2020-06-07	2020 LD	0.002051 AU (306,800 km; 190,700 mi)	0.80	89–200	22.4	—	data · 2020 LD
2020-06-13	2020-06-16	2020 ML₂	0.002378 AU (355,700 km; 221,000 mi)	0.93	6.7–15	28.0	—	data · 2020 ML₂
2020-07-05	2020-07-06	2020 NB	0.001193 AU (178,500 km; 110,900 mi)	0.46	15–33	26.3	—	data · 2020 NB
2020-07-27	2020-07-26	2020 OY4	0.000278 AU (41,600 km; 25,800 mi)	0.11	2.3–5.2	30.3	—	data · 2020 OY₄
2020-08-01	2020-08-01	2020 PA	0.000387 AU (57,900 km; 36,000 mi)	0.15	4.6–10	28.8	—	data · 2020 PA
2020-08-11	2020-08-14	2020 PX₅	0.001526 AU (228,300 km; 141,900 mi)	0.59	3.2–7.2	29.6	—	data · 2020 PX₅
2020-08-12	2020-08-22	2020 QJ₅	0.001974 AU (295,300 km; 183,500 mi)	0.77	12–26	26.8	—	data · 2020 QJ₅
2020-08-14	2020-08-14	2020 PW₂	0.001867 AU (279,300 km; 173,500 mi)	0.73	4.9–11	28.7	—	data · 2020 PW₂
2020-08-16	2020-08-16	2020 QG	0.000062 AU (9,300 km; 5,800 mi)	0.02	2.9–6.4	29.8	—	data · 2020 QG
2020-08-18	2020-08-18	2020 QF₂	0.001402 AU (209,700 km; 130,300 mi)	0.55	7.1–16	27.9	—	data · 2020 QF₂
2020-08-20	2020-08-14	2020 PY₂	0.002342 AU (350,400 km; 217,700 mi)	0.91	12–28	26.7	✓	data · 2020 PY₂
2020-08-20	2020-08-20	2020 QY₂	0.000445 AU (66,600 km; 41,400 mi)	0.17	1.5–3.4	31.2	—	data · 2020 QY₂
2020-08-21	2020-08-22	2020 QN₄	0.001824 AU (272,900 km; 169,600 mi)	0.71	5.1–11	28.6	—	data · 2020 QN₄
2020-08-22	2020-08-23	2020 QQ₄	0.002062 AU (308,500 km; 191,700 mi)	0.80	4.6–10	28.8	—	data · 2020 QQ₄
2020-08-23	2020-08-25	2020 QR₅	0.002144 AU (320,700 km; 199,300 mi)	0.83	9.1–20	27.3	—	data · 2020 QR₅
2020-09-09	2020-09-12	2020 RE₅	0.001639 AU (245,200 km; 152,400 mi)	0.64	4.1–9.2	29.0	—	data · 2020 RE₅
2020-09-10	2020-09-13	2020 RG₁₀	0.000909 AU (136,000 km; 84,500 mi)	0.35	4.3–9.7	28.9	—	data · 2020 RG₁₀
2020-09-13	2020-09-17	2020 SP	0.002218 AU (331,800 km; 206,200 mi)	0.86	9.9–22	27.2	—	data · 2020 SP
2020-09-14	2020-09-12	2020 RF₃	0.000629 AU (94,100 km; 58,500 mi)	0.24	5.1–11	28.6	—	data · 2020 RF₃
2020-09-14	2020-09-12	2020 RD₄	0.000707 AU (105,800 km; 65,700 mi)	0.28	2.9–6.5	29.8	—	data · 2020 RD₄
2020-09-17	2020-09-15	2020 RZ₆	0.002273 AU (340,000 km; 211,300 mi)	0.88	12–27	26.7	—	data · 2020 RZ₆
2020-09-19	2020-09-20	2020 SZ₂	0.002449 AU (366,400 km; 227,600 mi)	0.95	3.5–7.9	29.4	—	data · 2020 SZ₂
2020-09-23	2020-09-26	2020 SG₆	0.001486 AU (222,300 km; 138,100 mi)	0.58	3.7–8.3	29.3	—	data · 2020 SG₆
2020-09-24	2020-09-18	2020 SW	0.000188 AU (28,100 km; 17,500 mi)	0.07	4.3–9.7	28.9	—	data · 2020 SW
2020-09-24	2020-09-25	2020 SN₅	0.001349 AU (201,800 km; 125,400 mi)	0.53	6.1–14	28.2	—	data · 2020 SN₅
2020-09-26	2020-09-23	2020 SQ₄	0.002363 AU (353,500 km; 219,700 mi)	0.92	4.5–10	28.9	—	data · 2020 SQ₄
2020-10-01	2020-10-04	2020 TA	0.001475 AU (220,700 km; 137,100 mi)	0.57	21–48	25.5	—	data · 2020 TA
2020-10-09	2020-10-10	2020 TE₅	0.001704 AU (254,900 km; 158,400 mi)	0.15	4.2–9.3	29.0	—	data · 2020 TE₅
2020-10-12	2020-10-08	2020 TS₁	0.001704 AU (254,900 km; 158,400 mi)	0.66	4.0–9.0	29.1	—	data · 2020 TS₁
2020-10-13	2020-10-15	2020 TD₇	0.002273 AU (340,000 km; 211,300 mi)	0.88	11–26	26.8	—	data · 2020 TD₇
2020-10-14	2020-10-15	2020 TK₇	0.000503 AU (75,200 km; 46,800 mi)	0.20	3.2–7.2	29.6	—	data · 2020 TK₇
2020-10-15	2020-10-17	2020 UE	0.001822 AU (272,600 km; 169,400 mi)	0.71	21–46	25.5	✓	data · 2020 UE
2020-10-17	2020-10-15	2020 TG₆	0.000928 AU (138,800 km; 86,300 mi)	0.36	8.0–18	29.0	—	data · 2020 TG₆
2020-10-18	2020-10-15	2020 TE₆	0.001538 AU (230,100 km; 143,000 mi)	0.60	8.5–19	27.6	✓	data · 2020 TE₆
2020-10-19	2020-10-17	2020 UX	0.001271 AU (190,100 km; 118,100 mi)	0.49	1.6–3.6	31.1	—	data · 2020 UX
2020-10-19	2020-10-15	2020 TF₁	0.001024 AU (153,200 km; 95,200 mi)	0.40	4.0–9.0	27.5	—	data · 2020 TF₆
2020-10-21	2020-10-16	2020 UA	0.000298 AU (44,600 km; 27,700 mi)	0.12	5.9–13	28.3	—	data · 2020 UA
2020-10-21	2020-10-17	2020 UY	0.002347 AU (351,100 km; 218,200 mi)	0.91	4.3–9.6	29.0	—	data · 2020 UY
2020-10-22	2020-10-21	2020 UO₃	0.002343 AU (350,500 km; 217,800 mi)	0.91	6.1–14	28.2	✓	data · 2020 UO₃
2020-10-22	2020-10-21	2020 UF₃	0.000289 AU (43,200 km; 26,900 mi)	0.11	5.1–11	28.6	—	data · 2020 UF₃
2020-11-02	2020-11-05	2020 VW	0.001481 AU (221,600 km; 137,700 mi)	0.58	5.4–12	28.4	—	data · 2020 VW
2020-11-06	2020-11-10	2020 VO₁	0.001157 AU (173,100 km; 107,500 mi)	0.45	6.7–15	28.0	—	data · 2020 VO₁
2020-11-09	2020-11-09	2020 VR₁	0.002540 AU (380,000 km; 236,100 mi)	0.99	4.4–9.8	28.9	—	data · 2020 VR₁
2020-11-11	2020-11-10	2020 VP₁	0.001225 AU (183,300 km; 113,900 mi)	0.49	7.8–17	27.7	✓	data · 2020 VP₁
2020-11-13	2020-11-14	2020 VT4	0.000045 AU (6,700 km; 4,200 mi)	0.02	4.9–11	28.7	—	data · 2020 VT₄
2020-11-13	2020-11-13	2020 VH₅	0.001691 AU (253,000 km; 157,200 mi)	0.66	3.9–8.6	29.2	—	data · 2020 VH₅
2020-11-24	2020-11-25	2020 WY₄	0.000746 AU (111,600 km; 69,300 mi)	0.29	4.4–9.9	28.9	—	data · 2020 WY₄
2020-11-26	2020-11-27	2020 WG₅	0.002416 AU (361,400 km; 224,600 mi)	0.94	7.9–18	27.6	—	data · 2020 WG₅
2020-11-26	2020-11-27	2020 WF₅	0.001346 AU (201,400 km; 125,100 mi)	0.52	7.6–17	27.7	—	data · 2020 WF₅
2020-11-30	2020-12-04	2020 XC	0.000810 AU (121,200 km; 75,300 mi)	0.32	4.2–9.5	29.0	✓	data · 2020 XC
2020-12-01	2020-12-04	2020 XE	0.001991 AU (297,800 km; 185,100 mi)	0.77	15–33	26.3	✓	data · 2020 XE
2020-12-03	2020-12-05	2020 XE₁	0.002184 AU (326,700 km; 203,000 mi)	0.85	13–28	26.6	✓	data · 2020 XE₁
2020-12-03	2020-12-05	2020 XF	0.000593 AU (88,700 km; 55,100 mi)	0.23	12–28	26.7	—	data · 2020 XF
2020-12-03	2020-11-14	2020 VZ₆	0.002332 AU (348,900 km; 216,800 mi)	0.91	25–57	25.1	✓	data · 2020 VZ₆
2020-12-07	2020-12-07	2020 XK₁	0.000139 AU (20,800 km; 12,900 mi)	0.05	2.0–4.4	30.6	—	data · 2020 XK₁
2020-12-08	2020-12-07	2020 XG₂	0.000327 AU (48,900 km; 30,400 mi)	0.13	7.0–16	27.9	—	data · 2020 XG₂
2020-12-16	2020-12-10	2020 XF₄	0.002293 AU (343,000 km; 213,100 mi)	0.89	8.8–20	27.4	✓	data · 2020 XF₄
2020-12-18	2020-12-10	2020 XX₃	0.000382 AU (57,100 km; 35,500 mi)	0.15	5.4–12	28.5	—	data · 2020 XX₃
2020-12-19	2020-12-21	2020 YR₂	0.001153 AU (172,500 km; 107,200 mi)	0.45	5.4–12	28.5	—	data · 2020 YR₂
2020-12-20	2020-12-21	2020 YS₂	0.000581 AU (86,900 km; 54,000 mi)	0.23	1.7–3.8	31.0	—	data · 2020 YS₂
2020-12-21	2020-12-21	2020 YJ₂	0.002291 AU (342,700 km; 213,000 mi)	0.89	9.4–21	27.3	—	data · 2020 YJ₂
2020-12-28	2020-12-27	2020 YS₄	0.000645 AU (96,500 km; 60,000 mi)	0.25	7.7–17	27.7	—	data · 2020 YS₄

Warning times by size

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. It shows the effectiveness of asteroid warning systems at detecting close approaches in 2021. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.

Absolute Magnitude 30 and greater

Silhouette of man standing and facing forward

(size of a person for comparison)

<imagemap> File:Circle frame.svg|22px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 100 100 100 After closest approach: 4 (50.0%) poly 100 100 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 138 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 154 16 155 17 157 18 159 19 160 21 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 34 176 36 178 37 179 39 180 41 181 42 182 44 184 45 185 47 186 49 187 51 188 52 189 54 190 56 191 58 191 60 192 61 193 63 194 65 194 67 195 69 196 71 196 73 197 75 197 77 198 79 198 81 199 83 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 100 200 102 200 104 200 106 200 108 200 110 200 112 200 114 199 116 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 134 194 136 194 137 193 139 192 141 191 143 191 145 190 146 189 148 188 150 187 152 186 153 185 155 184 157 183 158 181 160 180 162 179 163 178 165 176 166 175 168 174 169 172 170 171 100 100 < 24 hours before: 3 (37.5%) poly 100 100 170 171 172 170 173 168 174 167 176 165 177 164 178 162 179 161 181 159 182 157 183 156 184 154 185 152 186 151 187 149 188 147 189 145 190 144 191 142 191 140 192 138 193 136 194 134 194 132 195 131 195 129 196 127 197 125 197 123 197 121 198 119 198 117 198 115 199 113 199 111 199 109 199 107 199 105 199 103 199 101 200 101 100 100 up to 7 days before: 1 (12.5%) poly 100 100 200 101 200 101 100 100 > one week before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

Absolute Magnitude 29-30

<imagemap> File:Circle frame.svg|34px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 2 124 100 100 After closest approach: 14 (53.8%) poly 100 100 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 138 7 140 8 141 9 143 10 145 11 147 12 149 13 150 14 152 15 154 16 155 17 157 18 159 19 160 21 162 22 164 23 165 24 167 26 168 27 170 29 171 30 172 31 174 33 175 34 176 36 178 37 179 39 180 41 181 42 183 44 184 46 185 47 186 49 187 51 188 53 189 54 190 56 191 58 191 60 192 62 193 63 194 65 194 67 195 69 196 71 196 73 197 75 197 77 198 79 198 81 199 83 199 85 199 87 200 89 200 91 200 93 200 95 200 97 200 99 200 101 200 103 200 105 200 107 200 109 200 111 200 113 200 115 199 117 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 134 194 135 194 100 100 < 24 hours before: 7 (26.9%) poly 100 100 135 194 137 193 139 193 141 192 142 191 144 190 146 189 148 188 149 187 151 186 153 185 155 184 156 183 158 182 159 181 161 179 163 178 164 177 166 176 167 174 169 173 170 171 171 170 173 169 174 167 175 166 177 164 178 162 179 161 180 159 182 158 183 156 184 154 185 153 186 151 187 149 188 147 189 146 190 144 190 142 191 140 192 138 193 137 193 135 194 133 195 131 195 129 196 127 196 125 197 123 197 121 198 119 198 117 198 115 199 113 199 111 199 109 199 107 199 105 199 103 199 101 200 101 100 100 up to 7 days before: 5 (19.2%) poly 100 100 200 101 200 101 100 100 > one week before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

Absolute Magnitude 28-29

<imagemap> File:Circle frame.svg|54px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 100 100 After closest approach: 19 (63.3%) poly 100 100 33 175 34 176 36 177 37 179 39 180 40 181 42 182 44 183 45 185 47 186 49 187 50 188 52 189 54 190 56 190 58 191 59 192 61 193 63 194 65 194 67 195 69 196 100 100 < 24 hours before: 2 (6.7%) poly 100 100 69 196 71 196 72 197 74 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 100 200 102 200 104 200 106 200 108 200 110 200 112 200 114 199 116 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 133 195 135 194 137 193 139 192 141 192 143 191 144 190 146 189 148 188 150 187 151 186 153 185 155 184 156 183 158 182 160 180 161 179 163 178 164 177 166 175 167 174 169 173 170 171 172 170 173 168 174 167 176 165 177 164 178 162 179 161 181 159 182 157 183 156 184 154 185 152 186 151 187 149 188 147 189 145 190 144 191 142 191 140 192 138 193 136 194 134 194 132 195 131 195 129 196 127 197 125 197 123 197 121 100 100 up to 7 days before: 8 (26.7%) poly 100 100 197 121 198 119 198 117 198 115 199 113 199 111 199 109 199 107 199 105 199 103 199 101 200 101 100 100 > one week before: 1 (3.3%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

Absolute Magnitude 27-28

<imagemap> File:Circle frame.svg|86px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 34 176 36 177 37 179 39 180 40 181 42 182 44 183 45 185 47 186 49 187 50 188 52 189 54 190 56 190 58 191 59 192 61 193 63 194 65 194 67 195 69 196 71 196 72 197 100 100 After closest approach: 12 (70.6%) poly 100 100 72 197 74 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 100 200 102 200 104 200 106 200 108 200 110 200 112 200 114 199 116 199 118 199 120 198 122 198 124 198 125 197 127 197 129 196 131 195 133 195 135 194 137 193 139 192 141 192 142 191 144 190 100 100 < 24 hours before: 2 (11.8%) poly 100 100 144 190 146 189 148 188 149 187 151 186 153 185 154 184 156 183 158 182 159 181 161 179 163 178 164 177 166 176 167 174 169 173 170 171 171 170 173 169 174 167 175 166 177 164 178 163 179 161 180 159 182 158 183 156 184 154 185 153 186 151 187 149 188 147 189 146 190 144 190 142 191 140 192 138 193 137 193 135 194 133 195 131 195 129 196 127 196 125 197 123 197 121 198 119 198 117 198 115 199 113 199 111 199 109 199 107 199 105 199 103 199 101 200 101 100 100 up to 7 days before: 3 (17.6%) poly 100 100 200 101 200 101 100 100 > one week before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

Absolute Magnitude 26-27

<imagemap> File:Circle frame.svg|136px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 34 176 36 177 37 179 39 180 40 181 42 182 44 183 45 185 47 186 49 187 50 188 52 189 54 190 56 190 58 191 59 192 61 193 63 194 65 194 67 195 69 196 71 196 73 197 75 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 99 200 100 100 After closest approach: 12 (75.0%) poly 100 100 99 200 99 200 100 100 < 24 hours before: 0 (0.0%) poly 100 100 99 200 101 200 103 200 105 200 107 200 109 200 111 200 113 200 115 199 117 199 119 199 121 198 123 198 125 197 127 197 129 196 131 195 133 195 135 194 137 193 138 193 140 192 142 191 144 190 146 189 147 188 149 187 151 186 153 185 154 184 156 183 158 182 159 181 161 179 162 178 164 177 165 176 167 174 168 173 170 172 171 170 173 169 174 167 175 166 177 164 178 163 179 161 180 159 181 158 183 156 184 155 185 153 186 151 187 149 188 148 189 146 190 144 190 142 191 140 192 139 193 137 193 135 194 133 195 131 195 129 196 127 196 125 197 123 197 121 198 119 198 117 198 116 199 114 199 112 199 110 199 108 199 106 199 104 199 102 200 101 100 100 up to 7 days before: 4 (25.0%) poly 100 100 200 101 200 101 100 100 > one week before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

Absolute Magnitude 25-26

<imagemap> File:Circle frame.svg|214px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 34 176 36 177 37 179 39 180 40 181 42 182 44 183 45 185 47 186 49 187 50 188 52 189 54 190 56 190 58 191 59 192 61 193 63 194 65 194 67 195 69 196 71 196 73 197 75 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 100 200 102 200 104 200 106 200 108 200 110 200 112 200 114 199 116 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 130 196 100 100 After closest approach: 4 (80.0%) poly 100 100 130 196 130 196 100 100 < 24 hours before: 0 (0.0%) poly 100 100 130 196 130 196 100 100 up to 7 days before: 0 (0.0%) poly 100 100 130 196 132 195 134 194 136 194 138 193 140 192 142 191 143 190 145 189 147 189 149 188 150 187 152 186 154 184 155 183 157 182 159 181 160 180 162 179 163 177 165 176 166 175 168 173 169 172 171 171 172 169 174 168 175 166 176 165 177 163 179 162 180 160 181 158 182 157 183 155 184 153 185 152 186 150 187 148 188 146 189 145 190 143 191 141 192 139 192 137 193 135 194 134 195 132 195 130 196 128 196 126 197 124 197 122 198 120 198 118 198 116 199 114 199 112 199 110 199 108 199 106 199 104 199 102 200 101 100 100 > one week before: 1 (20.0%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

Absolute Magnitude less than 25 (largest)

<imagemap> File:Circle frame.svg|340px poly 100 100 200 100 199 99 199 97 199 95 199 93 199 91 199 89 199 87 198 85 198 83 198 81 197 79 197 77 196 75 196 73 195 71 194 69 194 67 193 65 192 63 192 62 191 60 190 58 189 56 188 54 187 53 186 51 185 49 184 47 183 46 182 44 181 42 180 41 178 39 177 38 176 36 175 35 173 33 172 32 171 30 169 29 168 27 166 26 165 25 163 23 162 22 160 21 158 20 157 19 155 17 154 16 152 15 150 14 148 13 147 12 145 11 143 10 141 10 139 9 138 8 136 7 134 7 132 6 130 5 128 5 126 4 124 4 122 3 120 3 118 2 116 2 115 2 113 1 111 1 109 1 107 1 105 1 103 1 101 1 99 1 97 1 95 1 93 1 91 1 89 1 87 1 85 2 83 2 81 2 79 3 77 3 75 4 73 4 71 5 69 5 67 6 65 7 63 7 62 8 60 9 58 10 56 10 54 11 53 12 51 13 49 14 47 15 46 16 44 17 42 18 41 20 39 21 37 22 36 23 34 25 33 26 31 27 30 29 29 30 27 31 26 33 24 34 23 36 22 37 21 39 19 41 18 42 17 44 16 46 15 47 14 49 13 51 12 52 11 54 10 56 9 58 8 60 7 61 7 63 6 65 5 67 5 69 4 71 3 73 3 75 2 77 2 79 2 80 1 82 1 84 1 86 0 88 0 90 0 92 0 94 0 96 0 98 0 100 0 102 0 104 0 106 0 108 0 110 0 112 0 114 1 116 1 118 1 120 2 122 2 124 3 126 3 128 4 130 5 132 5 134 6 136 7 137 7 139 8 141 9 143 10 145 11 147 12 148 13 150 14 152 15 153 16 155 17 157 18 158 19 160 20 162 22 163 23 165 24 166 26 168 27 169 28 171 30 172 31 174 33 175 34 176 36 177 37 179 39 180 40 181 42 182 44 183 45 185 47 186 49 187 50 188 52 189 54 190 56 190 58 191 59 192 61 193 63 194 65 194 67 195 69 196 71 196 73 197 75 197 76 198 78 198 80 199 82 199 84 199 86 200 88 200 90 200 92 200 94 200 96 200 98 200 100 200 102 200 104 200 106 200 108 200 110 200 112 200 114 199 116 199 118 199 120 198 122 198 124 197 126 197 128 196 130 196 132 195 134 195 135 194 137 193 139 192 141 191 143 191 145 190 146 189 148 188 150 187 152 186 153 185 155 184 157 183 158 181 160 180 161 179 163 178 165 176 166 175 167 174 169 172 170 171 172 170 173 168 174 167 176 165 177 164 178 162 180 160 181 159 182 157 183 156 184 154 185 152 186 150 187 149 188 147 189 145 190 143 191 142 191 140 192 138 193 136 194 134 194 132 195 130 196 128 196 127 197 125 197 123 197 121 198 119 198 117 198 115 199 113 199 111 199 109 199 107 199 105 199 103 199 101 200 101 100 100 After closest approach: 1 (100.0%) poly 100 100 200 101 200 101 100 100 < 24 hours before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 up to 7 days before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one week before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > 7 weeks before: 0 (0.0%) poly 100 100 200 101 200 101 100 100 > one year before: 0 (0.0%) desc none </imagemap>

After closest approach: 1 (100.0%)
< 24 hours before: 0 (0.0%)
up to 7 days before: 0 (0.0%)
> one week before: 0 (0.0%)
> 7 weeks before: 0 (0.0%)
> one year before: 0 (0.0%)

Predicted close approaches

Below is the list of predicted close approaches of near-Earth asteroids larger than magnitude 27, that were predicted to occur in 2020.^{[note 1]} This relates to asteroid cataloging systems effectiveness at predicting close approaches in 2020.

For asteroids which were observed but not predicted, see the main list above. In 2020, at the outset of the year, no asteroids were predicted to pass within 1 lunar distance of Earth. Table omitted.

Notes

^ ^1.0 ^1.1 Absolute magnitude 27 is the estimated magnitude of the Chelyabinsk meteor, which caused widespread damage and injury, but no deaths. Objects smaller than this are excluded.
^ For a list of current Earth close approaches see Close Approaches and NEO Earth Close Approaches
^ 2020 FD₂ passed Earth with a velocity with respect to Earth of 33.4 km/s and was moving away from the Sun at 38.6 km/s.
^ Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km (0.0166 LD).
^ Objects that approached closer to the Moon than Earth are marked with a check.

Additional examples

Radar image of 2020 BX12 and its satellite during close approach in February 2020

An example list of near-Earth asteroids that passed or will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2020.

Object	Size (meters)	Nearest approach (lunar distances)	Date	Ref
2020 BX12	165	11.34	2020-02-03	JPL · CAD
(163373) 2002 PZ₃₉	700	15.02	2020-02-15	JPL · CAD
(52768) 1998 OR2	1,750	16.36	2020-04-29	JPL · CAD
(388945) 2008 TZ₃	350	7.27	2020-05-10	JPL · CAD
(136795) 1997 BQ	1,000	16.02	2020-05-21	JPL · CAD
Planet Venus^{[note2 1]}	—	112.3	2020-06-03	JPL
(163348) 2002 NN4	613	13.25	2020-06-06	JPL · CAD
2013 XA₂₂	115	7.62	2020-06-08	JPL · CAD
(441987) 2010 NY₆₅	228	9.78	2020-06-24	JPL · CAD
(8014) 1990 MF	700	21.28	2020-07-23	JPL · CAD
2011 ES4	35	3.85	2020-09-02	JPL · CAD
2014 RC	22	38.58	2020-09-22	JPL · CAD
(159402) 1999 AP₁₀	2,600	31.39	2020-10-19	JPL · CAD
2020 VV	12	8.37	2020-10-21	JPL · CAD
2018 VP1	2-4	1.09+1.07 −11.06^{[note2 2]}	2020-11-02	JPL · CAD
(7753) 1988 XB	800	25.76	2020-11-22	JPL · CAD
(153201) 2000 WO107	600	11.19	2020-11-29	JPL · CAD
(501647) 2014 SD224	150	7.86	2020-12-25	JPL · CAD
162173 Ryugu	865	23.56	2020-12-29	JPL · CAD

Notes

^ For comparison
^ 2018 VP₁ could potentially pass less than 1 lunar distance to Earth, but the chances are fairly low and as such it was not listed in the main table unless followup observations confirm that it will pass less than 1 LD from Earth. A longer observation arc is required to constrain the orbit better. The Earth approach distance has an uncertainty of about 4 million km, ±3 days, and a 1:240 chance of impacting Earth.

References

^ "New Data Confirm 2020 SO to be the Upper Centaur Rocket Booster from the 1960's". NASA. 2 December 2020.
^ "JPL Small-Body Database Browser: (2020 FD2)". Jet Propulsion Laboratory.
^ "JPL Small-Body Database Browser". JPL Solar System Dynamics. NASA Jet Propulsion Laboratory.
^ "MPC Database". IAU Minor Planet Center. International Astronomical Union. Retrieved 1 January 2021.

[why-mag-27-1] 1.0 ^1.1 Absolute magnitude 27 is the estimated magnitude of the Chelyabinsk meteor, which caused widespread damage and injury, but no deaths. Objects smaller than this are excluded.

[2] For a list of current Earth close approaches see Close Approaches and NEO Earth Close Approaches

[5] 2020 FD₂ passed Earth with a velocity with respect to Earth of 33.4 km/s and was moving away from the Sun at 38.6 km/s.

[6] Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km (0.0166 LD).

[7] Objects that approached closer to the Moon than Earth are marked with a check.

[venus-10] For comparison

[uncertainty-11] 2018 VP₁ could potentially pass less than 1 lunar distance to Earth, but the chances are fairly low and as such it was not listed in the main table unless followup observations confirm that it will pass less than 1 LD from Earth. A longer observation arc is required to constrain the orbit better. The Earth approach distance has an uncertainty of about 4 million km, ±3 days, and a 1:240 chance of impacting Earth.

[NASA-20201202-3] "New Data Confirm 2020 SO to be the Upper Centaur Rocket Booster from the 1960's". NASA. 2 December 2020.

[JPL-2020FD2-4] "JPL Small-Body Database Browser: (2020 FD2)". Jet Propulsion Laboratory.

[nasa-jpl-ssd-database-8] "JPL Small-Body Database Browser". JPL Solar System Dynamics. NASA Jet Propulsion Laboratory.

[iau-mpc-db-9] "MPC Database". IAU Minor Planet Center. International Astronomical Union. Retrieved 1 January 2021.

[note 1]

[note 2]

[1]

[2]

[note 3]

[note 4]

[note 5]

[3]

[4]

[note2 1]

[note2 2]

v t e 2020 in space
« 2019 2021 »
Space probe launches	Solar Orbiter (Feb 2020) Hope (Jul 2020) Tianwen-1 (Jul 2020) Mars 2020 (Jul 2020) Perseverance rover Mars Helicopter Ingenuity Chang'e 5 (lunar sample return mission; Nov 2020)
Impact events	2020 China bolide
Selected NEOs	Asteroid close approaches 594913 ꞌAylóꞌchaxnim 2020 BX12 2020 CW 2020 CD3 (temporary satellite) (52768) 1998 OR2 2020 HS7 2020 JJ 2020 LD (163348) 2002 NN4 2020 OY4 2020 QG 2011 ES4 2018 VP1 2020 SO (space debris) 2020 SW 2020 SL1 2020 UA 2020 VV 2020 VT4 (153201) 2000 WO107 (501647) 2014 SD224 2020 XL5
Exoplanets	AU Mic b Gliese 229 Ac Gliese 414 Ab Ac Gliese 433 b c d GJ 1151 b radio emissions K2-315b Kepler-1649c KOI-456.04 Lacaille 9352 b c M51-ULS-1b OGLE-2016-BLG-1928 (rogue planet) Tau Ceti j (predicted) TOI-561 b c d e TOI-700 b c d TOI-732 b c TOI-1338 b TOI-1339 b c d TYC 8998-760-1 c WD 1856+534 b
Discoveries	Betelgeuse dimming FRB 180916 location and periodicity Radcliffe wave Ophiuchus Supercluster explosion PSO J03094+27 (distant blazar) 2MASS J1047+21 wind speed measurements SGR 1935+2154 (soft gamma ray repeater) HR 6819 black hole hypothesis PHL 293B ending of P Cygni profile hydrogen emission lines Swift J1818.0–1607 (young magnetar) GW190814 (announced) South Pole Wall GW190521 (announced) Phosphine detection in the atmosphere of Venus Water detection on the sunlit surface of the Moon
Comets	C/2019 Y4 (ATLAS) P/2019 LD2 (ATLAS) C/2017 T2 (PANSTARRS) C/2020 F8 (SWAN) C/2019 U6 (LEMMON) C/2020 F3 (NEOWISE) 2P/Encke 88P/Howell 156P/Russell–LINEAR
Space exploration	Spitzer retirement (Jan 2020) BepiColombo (Earth gravity assist; Apr 2020, Venus gravity assist; Oct 2020) OSIRIS-REx (sample collection from asteroid Bennu; Oct 2020) Hayabusa2 (sample return from asteroid Ryugu; Dec 2020) Chang'e 5 (lunar sample return; Dec 2020)
Lua error in mw.title.lua at line 346: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal'). Category:2019 in outer space — Category:2020 in outer space — Category:2021 in outer space

Timeline of known close approaches less than one lunar distance from Earth

Warning times by size

Predicted close approaches

Notes

Additional examples

Notes

See also

References