IAA RAS IAA Minor Planet Database

517103 (2013 EM20)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3179855833 ± 2.92e-08
Semi-major axis (a)1.3713108786 AU ± 6.06e-09
Inclination (i)8.36352262° ± 4.38e-06
Long. of Asc. Node (Ω)73.88003140° ± 5.87e-05
Arg. of Perihelion (ω)350.17326456° ± 5.85e-05
Mean Anomaly (M)42.68024369° ± 7.58e-06
Mean Motion (n)0.6137738683°/day ± 4.07e-09
Perihelion dist (q)0.93525379 AU ± 4.03e-08
Aphelion dist (Q)1.80736797 AU ± 4.08e-08
Orbital Period1.60584595 yr ± 1.06e-08
Physical Parameters
H (abs. magnitude)19.92
G (slope)0.15
Alternative Designations

2008 AO112

Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual1.766″
Uncertainty0
Orbit TypeApollo
MOID0.043499 AU
Observations Used2304
Oppositions9
Arc Total1997-2021
First Observation Used1997-04-07
Last Observation Used2021-05-06
Observations (4530)
Date Type RA Dec Mag Band Observatory
2020-09-28 21:24:11 S 03 58 48.142 -56 45 34.45 – V C57
2020-09-28 21:34:11 S 03 58 51.091 -56 45 40.39 – V C57
2020-09-28 22:34:11 S 03 59 12.948 -56 46 27.88 – V C57
2020-09-28 22:54:11 S 03 59 20.309 -56 46 45.55 – V C57
2020-09-28 23:24:11 S 03 59 30.859 -56 47 09.74 – V C57
2020-09-28 23:34:11 S 03 59 33.766 -56 47 18.82 – V C57
2020-09-28 23:54:11 S 03 59 40.625 -56 47 34.51 – V C57
2020-09-29 00:04:11 S 03 59 44.578 -56 47 42.54 – V C57
2020-09-29 00:14:11 S 03 59 48.348 -56 47 51.65 – V C57
2020-09-29 00:24:11 S 03 59 51.938 -56 48 00.11 – V C57
2020-09-29 00:24:11 s 1 -10294.254 0 +395267.44 3780.0 – C57
2020-09-29 00:34:11 S 03 59 56.004 -56 48 06.59 – V C57
2020-09-29 00:34:11 s 1 -10673.461 0 +395324.38 1890.0 – C57
2020-09-29 00:44:11 S 03 59 59.220 -56 48 17.71 – V C57
2020-09-29 00:44:11 s 1 -11052.650 0 +395380.39 9920.0 – C57
2020-09-29 00:54:11 S 04 00 03.062 -56 48 19.98 – V C57
2020-09-29 00:54:11 s 1 -11431.820 0 +395435.49 7870.0 – C57
2020-09-29 01:04:11 S 04 00 06.398 -56 48 31.46 – V C57
2020-09-29 01:04:11 s 1 -11810.970 0 +395489.66 5750.0 – C57
2020-09-29 01:14:11 S 04 00 10.034 -56 48 39.71 – V C57
2020-09-29 01:14:11 s 1 -12190.098 0 +395542.92 3540.0 – C57
2020-09-29 01:24:11 S 04 00 14.033 -56 48 48.85 – V C57
2020-09-29 01:24:11 s 1 -12569.205 0 +395595.25 1250.0 – C57
2020-09-29 01:34:11 S 04 00 17.431 -56 48 56.48 – V C57
2020-09-29 01:34:11 s 1 -12948.289 0 +395646.66 8880.0 – C57
2020-09-29 01:54:11 S 04 00 24.487 -56 49 09.98 – V C57
2020-09-29 01:54:11 s 1 -13706.386 0 +395746.73 3900.0 – C57
2020-09-29 02:14:11 S 04 00 31.370 -56 49 23.74 – V C57
2020-09-29 02:14:11 s 1 -14464.381 0 +395843.12 8580.0 – C57
2020-09-29 02:24:11 S 04 00 34.601 -56 49 35.51 – V C57
2020-09-29 02:24:11 s 1 -14843.339 0 +395889.94 5790.0 – C57
2020-09-29 02:34:11 S 04 00 38.448 -56 49 40.84 – V C57
2020-09-29 02:34:11 s 1 -15222.269 0 +395935.83 2930.0 – C57
2020-09-29 02:44:11 S 04 00 42.516 -56 49 47.24 – V C57
2020-09-29 02:44:11 s 1 -15601.171 0 +395980.81 9970.0 – C57
2020-09-29 02:54:11 S 04 00 45.593 -56 49 57.43 – V C57
2020-09-29 02:54:11 s 1 -15980.042 0 +396024.88 6930.0 – C57
2020-09-29 03:04:11 S 04 00 49.848 -56 50 01.61 – V C57
2020-09-29 03:04:11 s 1 -16358.884 0 +396068.02 3800.0 – C57
2020-09-29 03:14:11 S 04 00 53.201 -56 50 14.28 – V C57
2020-09-29 03:14:11 s 1 -16737.694 0 +396110.25 590.0 – C57
2020-09-29 03:24:11 S 04 00 56.458 -56 50 20.44 – V C57
2020-09-29 03:24:11 s 1 -17116.472 0 +396151.56 7290.0 – C57
2020-09-29 03:34:11 S 04 01 00.689 -56 50 28.18 – V C57
2020-09-29 03:34:11 s 1 -17495.218 0 +396191.95 3900.0 – C57
2020-09-29 03:44:11 S 04 01 04.190 -56 50 34.48 – V C57
2020-09-29 03:44:11 s 1 -17873.929 0 +396231.43 420.0 – C57
2020-09-29 03:54:11 S 04 01 07.658 -56 50 44.41 – V C57
2020-09-29 03:54:11 s 1 -18252.606 0 +396269.99 6860.0 – C57
2020-09-29 04:04:11 S 04 01 10.728 -56 50 58.67 – V C57