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
2020-09-29 21:54:11 s 1 -58766.703 0 +395093.70 7590.0 – C57
2020-09-29 22:04:11 S 04 07 51.206 -57 03 30.24 – V C57
2020-09-29 22:04:11 s 1 -59136.637 0 +395033.73 990.0 – C57
2020-09-29 22:14:11 S 04 07 55.601 -57 03 37.30 – V C57
2020-09-29 22:14:11 s 1 -59506.445 0 +394972.86 4230.0 – C57
2020-09-29 22:24:11 S 04 07 59.234 -57 03 40.43 – V C57
2020-09-29 22:24:11 s 1 -59876.127 0 +394911.10 7320.0 – C57
2020-09-29 22:34:11 S 04 08 03.060 -57 03 48.10 – V C57
2020-09-29 22:34:11 s 1 -60245.682 0 +394848.44 270.0 – C57
2020-09-29 22:44:11 S 04 08 06.958 -57 03 55.22 – V C57
2020-09-29 22:44:11 s 1 -60615.108 0 +394784.88 3060.0 – C57
2020-09-29 22:54:11 S 04 08 11.170 -57 04 00.66 – V C57
2020-09-29 22:54:11 s 1 -60984.406 0 +394720.43 5690.0 – C57
2020-09-29 23:04:11 S 04 08 13.608 -57 04 06.24 – V C57
2020-09-29 23:04:11 s 1 -61353.574 0 +394655.09 8180.0 – C57
2020-09-29 23:14:11 S 04 08 18.406 -57 04 11.71 – V C57
2020-09-29 23:14:11 s 1 -61722.611 0 +394588.85 510.0 – C57
2020-09-29 23:24:11 S 04 08 22.906 -57 04 17.18 – V C57
2020-09-29 23:24:11 s 1 -62091.517 0 +394521.71 2680.0 – C57
2020-09-29 23:34:11 S 04 08 26.174 -57 04 26.22 – V C57
2020-09-29 23:34:11 s 1 -62460.291 0 +394453.68 4700.0 – C57
2020-09-29 23:54:11 S 04 08 33.170 -57 04 36.26 – V C57
2020-09-29 23:54:11 s 1 -63197.438 0 +394314.94 8280.0 – C57
2020-09-30 00:14:11 S 04 08 41.458 -57 04 51.64 – V C57
2020-09-30 00:14:11 s 1 -63934.046 0 +394172.62 1220.0 – C57
2020-09-30 00:24:11 S 04 08 45.600 -57 04 55.27 – V C57
2020-09-30 00:24:11 s 1 -64302.146 0 +394100.12 2460.0 – C57
2020-09-30 00:34:11 S 04 08 48.701 -57 05 03.91 – V C57
2020-09-30 00:34:11 s 1 -64670.108 0 +394026.72 3540.0 – C57
2020-09-30 01:24:11 S 04 09 07.565 -57 05 34.69 – V C57
2020-09-30 01:24:11 s 1 -66507.833 0 +393646.32 6530.0 – C57
2020-09-30 01:34:11 S 04 09 12.458 -57 05 36.74 – V C57
2020-09-30 01:34:11 s 1 -66874.955 0 +393567.56 6650.0 – C57
2020-09-30 01:44:11 S 04 09 15.828 -57 05 46.32 – V C57
2020-09-30 01:44:11 s 1 -67241.933 0 +393487.90 6600.0 – C57
2020-09-30 01:54:11 S 04 09 18.835 -57 05 48.95 – V C57
2020-09-30 01:54:11 s 1 -67608.768 0 +393407.36 6390.0 – C57
2020-09-30 02:04:11 S 04 09 23.174 -57 05 56.69 – V C57
2020-09-30 02:04:11 s 1 -67975.457 0 +393325.91 6020.0 – C57
2020-09-30 02:14:11 S 04 09 26.813 -57 06 03.42 – V C57
2020-09-30 02:14:11 s 1 -68342.001 0 +393243.57 5480.0 – C57
2020-09-30 02:24:11 S 04 09 31.404 -57 06 09.07 – V C57
2020-09-30 02:24:11 s 1 -68708.399 0 +393160.34 4780.0 – C57
2020-09-30 02:44:11 S 04 09 37.810 -57 06 20.81 – V C57
2020-09-30 02:44:11 s 1 -69440.751 0 +392991.20 2880.0 – C57
2020-09-30 02:54:11 S 04 09 42.679 -57 06 26.42 – V C57
2020-09-30 02:54:11 s 1 -69806.705 0 +392905.29 1680.0 – C57
2020-09-30 03:04:11 S 04 09 46.082 -57 06 32.83 – V C57
2020-09-30 03:04:11 s 1 -70172.508 0 +392818.48 310.0 – C57
2020-09-30 03:24:11 S 04 09 54.989 -57 06 46.66 – V C57