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 04:24:12 s 1 -80349.782 0 +385438.77 8180.0 – C57
2020-09-16 04:44:12 S 02 26 41.340 -49 58 07.82 – V C57
2020-09-16 04:44:12 s 1 -81072.437 0 +385228.50 6010.0 – C57
2020-09-16 04:54:12 S 02 26 43.603 -49 58 16.93 – V C57
2020-09-16 04:54:12 s 1 -81433.480 0 +385121.98 4670.0 – C57
2020-09-16 05:04:12 S 02 26 45.658 -49 58 28.99 – V C57
2020-09-16 05:04:12 s 1 -81794.332 0 +385014.54 3160.0 – C57
2020-09-16 05:14:12 S 02 26 47.880 -49 58 50.38 – V C57
2020-09-16 05:14:12 s 1 -82154.992 0 +384906.17 1480.0 – C57
2020-09-16 05:24:12 S 02 26 50.222 -49 58 56.17 – V C57
2020-09-16 05:24:12 s 1 -82515.459 0 +384796.88 9630.0 – C57
2020-09-16 05:34:12 S 02 26 51.907 -49 59 07.30 – V C57
2020-09-16 05:34:12 s 1 -82875.732 0 +384686.66 7600.0 – C57
2020-09-16 05:44:12 S 02 26 53.830 -49 59 26.92 – V C57
2020-09-16 05:44:12 s 1 -83235.811 0 +384575.53 5400.0 – C57
2020-09-16 05:54:12 S 02 26 55.922 -49 59 35.59 – V C57
2020-09-16 05:54:12 s 1 -83595.694 0 +384463.46 3030.0 – C57
2020-09-16 06:04:12 S 02 26 58.406 -49 59 49.60 – V C57
2020-09-16 06:04:12 s 1 -83955.380 0 +384350.48 480.0 – C57
2020-09-16 06:14:12 S 02 27 00.305 -50 00 04.97 – V C57
2020-09-16 06:14:12 s 1 -84314.869 0 +384236.57 7760.0 – C57
2020-09-16 06:24:12 S 02 27 02.290 -50 00 24.23 – V C57
2020-09-16 06:24:12 s 1 -84674.160 0 +384121.73 4860.0 – C57
2020-09-16 06:34:12 S 02 27 04.548 -50 00 32.72 – V C57
2020-09-16 06:34:12 s 1 -85033.251 0 +384005.97 1780.0 – C57
2020-09-16 06:44:12 S 02 27 06.691 -50 00 49.14 – V C57
2020-09-16 06:44:12 s 1 -85392.142 0 +383889.29 8530.0 – C57
2020-09-16 06:54:12 S 02 27 08.906 -50 00 56.56 – V C57
2020-09-16 06:54:12 s 1 -85750.832 0 +383771.69 5100.0 – C57
2020-09-16 07:04:12 S 02 27 10.505 -50 01 08.15 – V C57
2020-09-16 07:04:12 s 1 -86109.320 0 +383653.16 1500.0 – C57
2020-09-16 07:24:12 S 02 27 14.333 -50 01 39.97 – V C57
2020-09-16 07:24:12 s 1 -86825.686 0 +383413.34 3750.0 – C57
2020-09-16 07:54:12 S 02 27 21.768 -50 02 17.56 – V C57
2020-09-16 07:54:12 s 1 -87898.696 0 +383046.67 780.0 – C57
2020-09-16 08:04:12 S 02 27 23.402 -50 02 29.15 – V C57
2020-09-16 08:04:12 s 1 -88255.953 0 +382922.61 6090.0 – C57
2020-09-16 08:14:12 S 02 27 25.925 -50 02 46.57 – V C57
2020-09-16 08:14:12 s 1 -88613.000 0 +382797.61 1230.0 – C57
2020-09-16 08:24:12 S 02 27 27.346 -50 02 59.24 – V C57
2020-09-16 08:24:12 s 1 -88969.838 0 +382671.70 6180.0 – C57
2020-09-16 08:34:12 S 02 27 30.106 -50 03 10.98 – V C57
2020-09-16 08:34:12 s 1 -89326.466 0 +382544.86 950.0 – C57
2020-09-16 08:44:12 S 02 27 31.848 -50 03 25.42 – V C57
2020-09-16 08:44:12 s 1 -89682.883 0 +382417.10 5530.0 – C57
2020-09-16 08:54:12 S 02 27 34.166 -50 03 38.45 – V C57
2020-09-16 08:54:12 s 1 -90039.087 0 +382288.42 9930.0 – C57
2020-09-16 09:04:12 S 02 27 36.598 -50 03 52.88 – V C57
2020-09-16 09:04:12 s 1 -90395.078 0 +382158.82 4150.0 – C57
2020-09-16 09:14:12 S 02 27 38.419 -50 04 03.18 – V C57