Discovery[1] | |
---|---|
Discovered by | DeCam–DES |
Discovery site | Cerro Tololo Obs. |
Discovery date | 19 April 2015 |
Designations | |
2015 HM10 | |
NEO · Apollo[1] Amor[2] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 3 | |
Observation arc | 0.39 yr (141 days) |
Aphelion | 4.0411 AU |
Perihelion | 1.0085 AU |
2.5248 AU | |
Eccentricity | 0.6006 |
4.01 yr (1,465 days) | |
195.53° | |
0° 14m 44.52s / day | |
Inclination | 1.4699° |
283.27° | |
353.48° | |
Earth MOID | 0.0022 AU · 0.9 LD |
Physical characteristics | |
Dimensions | 0.057 km (calculated)[3] |
0.3761±0.0001 h[4] 0.3763±0.0003 h[5] | |
0.20 (assumed)[3] | |
S (assumed)[3] | |
23.6[1][3] | |
2015 HM10 is an irregular shaped asteroid and sub-kilometer near-Earth object that passed near the Earth on 7 July 2015, at a distance of 442,000 kilometers or 1.15 lunar distances.
First observed on 19 April 2015, by astronomers of the Dark Energy Survey at Cerro Tololo Observatory in Chile, the asteroid measures approximately 60 meters in diameter and is classified as a member of the Apollo and Amor group, respectively. It is a fast rotator with a rotation period of 22.6 minutes.
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