Summary
Below is the list of asteroid close approaches to Earth in 2010.
| Time of discovery of asteroids which came closer to Earth than the moon in 2010 |
|
Timeline of close approaches less than one lunar distance from Earth in 2010 edit
A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2010.[note 1]
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)
This list does not include any of the objects that collided with earth in 2010, none of which were discovered in advance, but were recorded by sensors designed to detect detonation of nuclear devices.
| Date of closest approach |
Date discovered |
Object | Nominal geocentric distance (AU)[note 2] |
Nominal geocentric distance (LD) |
Size (m) (approximate) |
(H) (abs. mag) |
Closer approach to Moon |
Refs[1][2] |
|---|---|---|---|---|---|---|---|---|
| 2010-01-13 | 2010-01-10 | 2010 AL30 | 0.000862 AU (129,000 km; 80,100 mi) | 0.34 | 9-22 | 27.2[3] | data · 2010 AL30 | |
| 2010-02-17 | 2010-02-14 | 2010 CK19 | 0.00233 AU (349,000 km; 217,000 mi) | 0.91 | 6-16 | 27.9[4] | data · 2010 CK19 | |
| 2010-04-18 | 2010-04-20 | 2010 HP20 | 0.00160 AU (239,000 km; 149,000 mi) | 0.62 | 8–19 | 27.5 | data · 2010 HP20 | |
| 2010-05-23 | 2010-05-20 | 2010 KO10 | 0.00116 AU (174,000 km; 108,000 mi) | 0.45 | 9-23 | 27.1[5] | data · 2010 KO10 | |
| 2010-05-26 | 2010-05-24 | 2010 KV39 | 0.00167 AU (250,000 km; 155,000 mi) | 0.65 | 11-25 | 26.8[6] | data · 2010 KV39 | |
| 2010-09-08 | 2010-09-05 | 2010 RX30 | 0.00166 AU (248,000 km; 154,000 mi) | 0.64 | 9-23 | 27.1[7] | data · 2010 RX30 | |
| 2010-09-08 | 2010-09-05 | 2010 RF12 | 0.000531 AU (79,400 km; 49,400 mi) | 0.21 | 6-14 | 28.1[8] | data · 2010 RF12 | |
| 2010-09-08 | 2010-09-10 | 2010 RK53 | 0.000482 AU (72,100 km; 44,800 mi) | 0.19 | 6-16 | 27.9[9] | data · 2010 RK53 | |
| 2010-09-30 | 2010-09-28 | 2010 SK13 | 0.00177 AU (265,000 km; 165,000 mi) | 0.69 | 8-20 | 27.4[10] | data · 2010 SK13 | |
| 2010-10-09 | 2010-10-11 | 2010 TW54 | 0.00108 AU (162,000 km; 100,000 mi) | 0.42 | 7-18 | 27.6[11] | data · 2010 TW54 | |
| 2010-10-11 | 2010-10-13 | 2010 TN55 | 0.00219 AU (328,000 km; 204,000 mi) | 0.85 | 10-25 | 26.9[12] | Yes | data · 2010 TN55 |
| 2010-10-12 | 2010-10-09 | 2010 TD54 | 0.000346 AU (51,800 km; 32,200 mi) | 0.13 | 4-10 | 28.9[13] | data · 2010 TD54 | |
| 2010-10-16 | 2010-10-17 | 2010 UE | 0.000763 AU (114,100 km; 70,900 mi) | 0.30 | 3-7 | 29.6[14] | data · 2010 UE | |
| 2010-10-17 | 2010-10-12 | 2010 TE55 | 0.00245 AU (367,000 km; 228,000 mi) | 0.95 | 6-15 | 28.0[15] | Yes | data · 2010 TE55 |
| 2010-10-26 | 2010-10-30 | 2010 UY7 | 0.00163 AU (244,000 km; 152,000 mi) | 0.63 | 5-12 | 28.5[16] | Yes | data · 2010 UY7 |
| 2010-11-02 | 2010-10-29 | 2010 UJ7 | 0.00191 AU (286,000 km; 178,000 mi) | 0.74 | 20-49 | 25.4[17] | data · 2010 UJ7 | |
| 2010-11-02 | 2010-11-03 | 2010 VN1 | 0.000866 AU (129,600 km; 80,500 mi) | 0.34 | 5-13 | 28.3[18] | data · 2010 VN1 | |
| 2010-11-07 | 2010-11-06 | 2010 VR21 | 0.00237 AU (355,000 km; 220,000 mi) | 0.92 | 3-10 | 29.3[19] | data · 2010 VR21 | |
| 2010-11-12 | 2010-11-14 | 2010 VP139 | 0.000534 AU (79,900 km; 49,600 mi) | 0.21 | 3-10 | 29.2[20] | data · 2010 VP139 | |
| 2010-11-13 | 2010-11-15 | 2010 VC140 | 0.00193 AU (289,000 km; 179,000 mi) | 0.75 | 6-16 | 27.9[21] | data · 2010 VC140 | |
| 2010-11-17 | 2010-11-16 | 2010 WA | 0.000260 AU (38,900 km; 24,200 mi) | 0.10 | 2-6 | 30.0[22] | data · 2010 WA | |
| 2010-11-29 | 2010-12-02 | 2010 XR | 0.00129 AU (193,000 km; 120,000 mi) | 0.50 | 10-25 | 26.9[23] | data · 2010 XR | |
| 2010-11-30 | 2010-12-01 | 2010 XB | 0.000354 AU (53,000 km; 32,900 mi) | 0.14 | 3-7 | 29.6[24] | data · 2010 XB |
Warning Times by Size edit
This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. 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.
Abs Magnitude 30 and greater
(size of a person for comparison)
Abs Magnitude 29-30
Absolute Magnitude 28-29
Absolute Magnitude 27-28
Absolute Magnitude 26-27
Absolute Magnitude 25-26
- After closest approach: 0 (0.0%)
- < 24 hours before: 0 (0.0%)
- up to 7 days before: 1 (100.0%)
- > one week before: 0 (0.0%)
- > 7 weeks before: 0 (0.0%)
- > one year before: 0 (0.0%)
Notes edit
2015 AQ43 may have passed as close as 0.00012 AU (18,000 km; 11,000 mi) (0.05 Lunar Distances) from the Earth on January 15, 2010, but the nominal distance suggests it only passed 5 LD away.
See also edit
References edit
- ^ "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.
- ^ "JPL Small-Body Database Browser: (2010 AL30)" (last observation: 2010-01-13).
- ^ "JPL Small-Body Database Browser: (2010 CK19)" (last observation: 2010-02-16).
- ^ "JPL Small-Body Database Browser: (2010 KO10)" (last observation: 2010-05-23).
- ^ "JPL Small-Body Database Browser: (2010 KV39)" (last observation: 2010-05-26).
- ^ "JPL Small-Body Database Browser: (2010 RX30)" (last observation: 2013-08-13).
- ^ "JPL Small-Body Database Browser: (2010 RF12)" (last observation: 2010-09-08).
- ^ "JPL Small-Body Database Browser: (2010 RK53)" (last observation: 2010-09-17).
- ^ "JPL Small-Body Database Browser: (2010 SK13)" (last observation: 2010-09-30).
- ^ "JPL Small-Body Database Browser: (2010 TW54)" (last observation: 2010-10-16).
- ^ "JPL Small-Body Database Browser: (2010 TN55)" (last observation: 2010-10-16). Archived from the original on 2017-04-06.
- ^ "JPL Small-Body Database Browser: (2010 TD54)" (last observation: 2010-10-12).
- ^ "JPL Small-Body Database Browser: (2010 UE)" (last observation: 2010-10-17).
- ^ "JPL Small-Body Database Browser: (2010 TE55)" (last observation: 2010-10-17).
- ^ "JPL Small-Body Database Browser: (2010 UY7)" (last observation: 2010-11-06).
- ^ "JPL Small-Body Database Browser: (2010 UJ7)" (last observation: 2010-11-02).
- ^ "JPL Small-Body Database Browser: (2010 VN1)" (last observation: 2010-11-09).
- ^ "JPL Small-Body Database Browser: (2010 VR21)" (last observation: 2010-11-07).
- ^ "JPL Small-Body Database Browser: (2010 VP139)" (last observation: 2010-11-14).
- ^ "JPL Small-Body Database Browser: (2010 VC140)" (last observation: 2010-11-19).
- ^ "JPL Small-Body Database Browser: (2010 WA)" (last observation: 2010-11-17).
- ^ "JPL Small-Body Database Browser: (2010 XR)" (last observation: 2010-12-05).
- ^ "JPL Small-Body Database Browser: (2010 XB)" (last observation: 2010-12-02).