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
2020-09-30 03:24:11 s 1 -70903.661 0 +392642.19 7070.0 – C57
2020-09-30 04:24:11 S 04 10 17.083 -57 07 19.63 – V C57
2020-09-30 04:24:11 s 1 -73093.438 0 +392091.88 3290.0 – C57
2020-09-30 04:44:11 S 04 10 25.663 -57 07 30.36 – V C57
2020-09-30 04:44:11 s 1 -73822.113 0 +391901.30 7320.0 – C57
2020-09-30 05:14:11 S 04 10 36.840 -57 07 49.58 – V C57
2020-09-30 05:14:11 s 1 -74913.930 0 +391608.73 7060.0 – C57
2020-09-30 05:34:11 S 04 10 42.907 -57 07 55.85 – V C57
2020-09-30 05:34:11 s 1 -75641.001 0 +391409.21 9350.0 – C57
2020-09-30 05:54:11 S 04 10 51.677 -57 08 10.61 – V C57
2020-09-30 05:54:11 s 1 -76367.418 0 +391206.13 930.0 – C57
2020-09-30 06:14:11 S 04 10 59.426 -57 08 20.40 – V C57
2020-09-30 06:14:11 s 1 -77093.174 0 +390999.47 1800.0 – C57
2020-09-30 06:24:11 S 04 11 03.310 -57 08 27.24 – V C57
2020-09-30 06:24:11 s 1 -77455.803 0 +390894.80 6970.0 – C57
2020-09-30 06:34:11 S 04 11 07.879 -57 08 33.29 – V C57
2020-09-30 06:34:11 s 1 -77818.264 0 +390789.24 1950.0 – C57
2020-09-30 06:44:11 S 04 11 10.553 -57 08 37.03 – V C57
2020-09-30 06:44:11 s 1 -78180.556 0 +390682.79 6760.0 – C57
2020-09-30 07:04:11 S 04 11 18.823 -57 08 51.40 – V C57
2020-09-30 07:04:11 s 1 -78904.631 0 +390467.20 5830.0 – C57
2020-09-30 07:14:11 S 04 11 22.627 -57 08 58.42 – V C57
2020-09-30 07:14:11 s 1 -79266.412 0 +390358.07 100.0 – C57
2020-09-30 07:24:11 S 04 11 26.904 -57 09 03.71 – V C57
2020-09-30 07:24:11 s 1 -79628.022 0 +390248.04 4180.0 – C57
2020-09-30 07:34:11 S 04 11 30.427 -57 09 05.40 – V C57
2020-09-30 07:34:11 s 1 -79989.458 0 +390137.12 8080.0 – C57
2020-09-30 07:44:11 S 04 11 34.135 -57 09 11.84 – V C57
2020-09-30 07:44:11 s 1 -80350.721 0 +390025.31 1790.0 – C57
2020-09-30 07:54:11 S 04 11 38.316 -57 09 19.44 – V C57
2020-09-30 07:54:11 s 1 -80711.809 0 +389912.61 5320.0 – C57
2020-09-30 08:14:11 S 04 11 46.022 -57 09 29.84 – V C57
2020-09-30 08:14:11 s 1 -81433.459 0 +389684.52 1820.0 – C57
2020-09-30 08:24:11 S 04 11 50.206 -57 09 36.00 – V C57
2020-09-30 08:24:11 s 1 -81794.018 0 +389569.14 4800.0 – C57
2020-09-30 08:44:11 S 04 11 57.722 -57 09 44.46 – V C57
2020-09-30 08:44:11 s 1 -82514.601 0 +389335.69 180.0 – C57
2020-09-30 08:54:11 S 04 12 01.642 -57 09 49.54 – V C57
2020-09-30 08:54:11 s 1 -82874.624 0 +389217.63 2600.0 – C57
2020-09-30 09:44:11 S 04 12 21.682 -57 10 16.75 – V C57
2020-09-30 09:44:11 s 1 -84672.009 0 +388613.93 1810.0 – C57
2020-09-30 09:54:11 S 04 12 25.488 -57 10 22.48 – V C57
2020-09-30 09:54:11 s 1 -85030.935 0 +388490.51 3080.0 – C57
2020-09-30 10:04:11 S 04 12 28.752 -57 10 31.08 – V C57
2020-09-30 10:04:11 s 1 -85389.674 0 +388366.20 4160.0 – C57
2020-09-30 10:24:11 S 04 12 36.679 -57 10 40.37 – V C57
2020-09-30 10:24:11 s 1 -86106.592 0 +388114.89 5740.0 – C57
2020-09-30 10:34:11 S 04 12 40.774 -57 10 46.74 – V C57
2020-09-30 10:34:11 s 1 -86464.769 0 +387987.90 6240.0 – C57
2020-09-30 10:54:11 S 04 12 48.739 -57 10 53.65 – V C57