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 04:04:11 s 1 -18631.248 0 +396307.64 3200.0 – C57
2020-09-29 04:14:11 S 04 01 15.574 -56 51 00.65 – V C57
2020-09-29 04:14:11 s 1 -19009.853 0 +396344.37 9450.0 – C57
2020-09-29 04:24:11 S 04 01 18.751 -56 51 07.06 – V C57
2020-09-29 04:24:11 s 1 -19388.422 0 +396380.19 5620.0 – C57
2020-09-29 04:44:11 S 04 01 26.602 -56 51 21.06 – V C57
2020-09-29 04:44:11 s 1 -20145.443 0 +396449.07 7670.0 – C57
2020-09-29 05:04:11 S 04 01 33.780 -56 51 34.88 – V C57
2020-09-29 05:04:11 s 1 -20902.307 0 +396514.30 9350.0 – C57
2020-09-29 05:14:11 S 04 01 36.962 -56 51 43.56 – V C57
2020-09-29 05:14:11 s 1 -21280.677 0 +396545.55 5050.0 – C57
2020-09-29 05:24:11 S 04 01 41.023 -56 51 57.17 – V C57
2020-09-29 05:24:11 s 1 -21659.005 0 +396575.88 650.0 – C57
2020-09-29 05:34:11 S 04 01 43.613 -56 52 01.49 – V C57
2020-09-29 05:34:11 s 1 -22037.290 0 +396605.29 6170.0 – C57
2020-09-29 05:44:11 S 04 01 47.666 -56 52 09.52 – V C57
2020-09-29 05:44:11 s 1 -22415.531 0 +396633.80 1580.0 – C57
2020-09-29 05:54:11 S 04 01 51.614 -56 52 16.93 – V C57
2020-09-29 05:54:11 s 1 -22793.728 0 +396661.39 6900.0 – C57
2020-09-29 06:04:11 S 04 01 55.255 -56 52 25.00 – V C57
2020-09-29 06:04:11 s 1 -23171.879 0 +396688.07 2130.0 – C57
2020-09-29 06:14:11 S 04 01 58.426 -56 52 30.14 – V C57
2020-09-29 06:14:11 s 1 -23549.984 0 +396713.83 7260.0 – C57
2020-09-29 06:24:11 S 04 02 02.107 -56 52 37.24 – V C57
2020-09-29 06:24:11 s 1 -23928.041 0 +396738.69 2290.0 – C57
2020-09-29 06:34:11 S 04 02 08.035 -56 52 48.29 – V C57
2020-09-29 06:34:11 s 1 -24306.051 0 +396762.63 7220.0 – C57
2020-09-29 06:44:11 S 04 02 09.379 -56 52 52.86 – V C57
2020-09-29 06:44:11 s 1 -24684.012 0 +396785.66 2050.0 – C57
2020-09-29 06:54:11 S 04 02 13.682 -56 52 59.88 – V C57
2020-09-29 06:54:11 s 1 -25061.923 0 +396807.78 6790.0 – C57
2020-09-29 07:04:11 S 04 02 16.577 -56 53 09.64 – V C57
2020-09-29 07:04:11 s 1 -25439.784 0 +396828.99 1420.0 – C57
2020-09-29 07:14:11 S 04 02 20.126 -56 53 17.05 – V C57
2020-09-29 07:14:11 s 1 -25817.593 0 +396849.29 5960.0 – C57
2020-09-29 07:44:11 S 04 02 31.452 -56 53 37.39 – V C57
2020-09-29 07:44:11 s 1 -26950.705 0 +396904.72 8950.0 – C57
2020-09-29 08:44:11 S 04 02 53.052 -56 54 18.76 – V C57
2020-09-29 08:44:11 s 1 -29215.430 0 +396991.04 2170.0 – C57
2020-09-29 09:04:11 S 04 03 00.924 -56 54 34.81 – V C57
2020-09-29 09:04:11 s 1 -29969.870 0 +397012.54 9070.0 – C57
2020-09-29 09:14:11 S 04 03 04.438 -56 54 40.07 – V C57
2020-09-29 09:14:11 s 1 -30346.999 0 +397021.93 2360.0 – C57
2020-09-29 09:24:11 S 04 03 08.302 -56 54 50.76 – V C57
2020-09-29 09:24:11 s 1 -30724.065 0 +397030.41 5540.0 – C57
2020-09-29 09:34:11 S 04 03 12.322 -56 54 59.33 – V C57
2020-09-29 09:34:11 s 1 -31101.069 0 +397037.98 8610.0 – C57
2020-09-29 09:44:11 S 04 03 15.442 -56 55 09.30 – V C57
2020-09-29 09:44:11 s 1 -31478.009 0 +397044.65 1580.0 – C57
2020-09-29 10:04:11 S 04 03 22.918 -56 55 22.98 – V C57