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
2020-09-16 20:44:12 s 1 -114727.82 1 +370792.37 7070.0 – C57
2020-09-16 21:04:12 S 02 30 13.793 -50 19 46.24 – V C57
2020-09-16 21:04:12 s 1 -115404.33 3 +370401.08 6170.0 – C57
2020-09-16 21:14:12 S 02 30 15.060 -50 20 04.45 – V C57
2020-09-16 21:14:12 s 1 -115742.16 2 +370204.04 5380.0 – C57
2020-09-16 21:34:12 S 02 30 20.525 -50 20 26.77 – V C57
2020-09-16 21:34:12 s 1 -116416.96 3 +369807.20 3110.0 – C57
2020-09-16 22:04:12 S 02 30 26.822 -50 21 03.89 – V C57
2020-09-16 22:04:12 s 1 -117427.00 4 +369204.98 8000.0 – C57
2020-09-16 22:34:12 S 02 30 34.164 -50 21 43.52 – V C57
2020-09-16 22:34:12 s 1 -118434.42 7 +368594.42 820.0 – C57
2020-09-16 22:54:12 S 02 30 38.198 -50 22 13.15 – V C57
2020-09-16 22:54:12 s 1 -119104.57 5 +368182.75 4870.0 – C57
2020-09-17 00:14:12 S 02 30 56.299 -50 23 54.20 – V C57
2020-09-17 00:14:12 s 1 -121773.23 3 +366498.97 1700.0 – C57
2020-09-17 00:34:12 S 02 31 00.514 -50 24 19.84 – V C57
2020-09-17 00:34:12 s 1 -122437.37 2 +366068.75 1040.0 – C57
2020-09-17 01:04:12 S 02 31 07.471 -50 25 06.60 – V C57
2020-09-17 01:04:12 s 1 -123431.27 8 +365416.45 3250.0 – C57
2020-09-17 01:34:12 S 02 31 13.858 -50 25 40.51 – V C57
2020-09-17 01:34:12 s 1 -124422.39 4 +364755.79 3290.0 – C57
2020-09-17 02:04:12 S 02 31 20.453 -50 26 22.06 – V C57
2020-09-17 02:04:12 s 1 -125410.69 0 +364086.76 1140.0 – C57
2020-09-17 02:24:12 S 02 31 25.867 -50 26 46.10 – V C57
2020-09-17 02:24:12 s 1 -126067.97 3 +363636.10 5150.0 – C57
2020-09-17 03:54:12 S 02 31 46.387 -50 28 42.20 – V C57
2020-09-17 03:54:12 s 1 -129009.84 3 +361562.05 930.0 – C57
2020-09-17 04:34:12 S 02 31 54.367 -50 29 38.76 – V C57
2020-09-17 04:34:12 s 1 -130308.84 2 +360616.04 6970.0 – C57
2020-09-17 04:44:12 S 02 31 57.780 -50 29 46.54 – V C57
2020-09-17 04:44:12 s 1 -130632.76 1 +360377.20 5350.0 – C57
2020-09-17 04:54:12 S 02 31 59.633 -50 29 59.93 – V C57
2020-09-17 04:54:12 s 1 -130956.34 6 +360137.44 3470.0 – C57
2020-09-17 05:04:12 S 02 32 01.790 -50 30 11.20 – V C57
2020-09-17 05:04:12 s 1 -131279.59 6 +359896.74 1330.0 – C57
2020-09-17 05:54:12 S 02 32 12.994 -50 31 17.36 – V C57
2020-09-17 05:54:12 s 1 -132890.77 1 +358679.25 6790.0 – C57
2020-09-17 06:04:12 S 02 32 15.710 -50 31 29.42 – V C57
2020-09-17 06:04:12 s 1 -133211.98 4 +358432.95 3110.0 – C57
2020-09-17 06:24:12 S 02 32 19.805 -50 31 46.31 – V C57
2020-09-17 06:24:12 s 1 -133853.37 7 +357937.55 4950.0 – C57
2020-09-17 06:44:12 S 02 32 24.276 -50 32 25.76 – V C57
2020-09-17 06:44:12 s 1 -134493.38 8 +357438.41 5750.0 – C57
2020-09-17 06:54:12 S 02 32 27.002 -50 32 36.31 – V C57
2020-09-17 06:54:12 s 1 -134812.87 1 +357187.43 760.0 – C57
2020-09-17 07:04:12 S 02 32 29.431 -50 32 50.10 – V C57
2020-09-17 07:04:12 s 1 -135132.00 6 +356935.53 5500.0 – C57
2020-09-17 07:14:12 S 02 32 31.399 -50 32 54.17 – V C57
2020-09-17 07:14:12 s 1 -135450.78 9 +356682.68 9980.0 – C57
2020-09-17 07:24:12 S 02 32 34.306 -50 33 12.78 – V C57