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 14:54:11 s 1 -43127.006 0 +396802.47 6690.0 – C57
2020-09-29 15:14:11 S 04 05 17.777 -56 58 57.54 – V C57
2020-09-29 15:14:11 s 1 -43875.842 0 +396757.06 4970.0 – C57
2020-09-29 15:24:11 S 04 05 22.109 -56 59 04.63 – V C57
2020-09-29 15:24:11 s 1 -44250.123 0 +396733.00 3910.0 – C57
2020-09-29 15:34:11 S 04 05 25.814 -56 59 13.88 – V C57
2020-09-29 15:34:11 s 1 -44624.311 0 +396708.04 2730.0 – C57
2020-09-29 15:44:11 S 04 05 29.011 -56 59 18.28 – V C57
2020-09-29 15:44:11 s 1 -44998.406 0 +396682.18 1430.0 – C57
2020-09-29 15:54:11 S 04 05 32.335 -56 59 28.21 – V C57
2020-09-29 15:54:11 s 1 -45372.406 0 +396655.42 9990.0 – C57
2020-09-29 16:04:11 S 04 05 36.144 -56 59 33.00 – V C57
2020-09-29 16:04:11 s 1 -45746.311 0 +396627.76 8420.0 – C57
2020-09-29 16:14:11 S 04 05 39.754 -56 59 41.96 – V C57
2020-09-29 16:14:11 s 1 -46120.121 0 +396599.20 6720.0 – C57
2020-09-29 16:24:11 S 04 05 43.798 -56 59 40.81 – V C57
2020-09-29 16:24:11 s 1 -46493.834 0 +396569.74 4900.0 – C57
2020-09-29 16:34:11 S 04 05 47.532 -56 59 57.70 – V C57
2020-09-29 16:34:11 s 1 -46867.449 0 +396539.38 2940.0 – C57
2020-09-29 16:44:11 S 04 05 51.151 -56 59 56.08 – V C57
2020-09-29 16:44:11 s 1 -47240.966 0 +396508.12 850.0 – C57
2020-09-29 16:54:11 S 04 05 55.169 -57 00 03.53 – V C57
2020-09-29 16:54:11 s 1 -47614.383 0 +396475.97 8620.0 – C57
2020-09-29 17:14:11 S 04 06 02.758 -57 00 21.71 – V C57
2020-09-29 17:14:11 s 1 -48360.918 0 +396408.95 3780.0 – C57
2020-09-29 17:24:11 S 04 06 06.413 -57 00 28.12 – V C57
2020-09-29 17:24:11 s 1 -48734.033 0 +396374.10 1150.0 – C57
2020-09-29 17:44:11 S 04 06 13.598 -57 00 37.87 – V C57
2020-09-29 17:44:11 s 1 -49479.955 0 +396301.69 5500.0 – C57
2020-09-29 17:54:11 S 04 06 17.930 -57 00 46.48 – V C57
2020-09-29 17:54:11 s 1 -49852.760 0 +396264.14 2470.0 – C57
2020-09-29 18:14:11 S 04 06 24.744 -57 01 01.52 – V C57
2020-09-29 18:14:11 s 1 -50598.055 0 +396186.34 6000.0 – C57
2020-09-29 18:24:11 S 04 06 28.572 -57 01 05.81 – V C57
2020-09-29 18:24:11 s 1 -50970.542 0 +396146.10 2560.0 – C57
2020-09-29 18:44:11 S 04 06 36.492 -57 01 17.44 – V C57
2020-09-29 18:44:11 s 1 -51715.195 0 +396062.91 5270.0 – C57
2020-09-29 19:24:11 S 04 06 51.190 -57 01 46.49 – V C57
2020-09-29 19:24:11 s 1 -53203.185 0 +395885.77 9010.0 – C57
2020-09-29 19:44:11 S 04 06 58.896 -57 01 55.27 – V C57
2020-09-29 19:44:11 s 1 -53946.509 0 +395791.82 30.0 – C57
2020-09-29 20:04:11 S 04 07 06.422 -57 02 13.38 – V C57
2020-09-29 20:04:11 s 1 -54689.377 0 +395694.28 490.0 – C57
2020-09-29 20:34:11 S 04 07 17.038 -57 02 29.29 – V C57
2020-09-29 20:34:11 s 1 -55802.809 0 +395541.24 5090.0 – C57
2020-09-29 21:34:11 S 04 07 41.225 -57 03 05.80 – V C57
2020-09-29 21:34:11 s 1 -58026.462 0 +395210.96 350.0 – C57
2020-09-29 21:44:11 S 04 07 43.766 -57 03 15.80 – V C57
2020-09-29 21:44:11 s 1 -58396.644 0 +395152.78 4050.0 – C57
2020-09-29 21:54:11 S 04 07 47.926 -57 03 24.55 – V C57