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 10:04:11 s 1 -32231.694 0 +397055.26 7180.0 – C57
2020-09-29 10:14:11 S 04 03 27.043 -56 55 28.45 – V C57
2020-09-29 10:14:11 s 1 -32608.437 0 +397059.21 9820.0 – C57
2020-09-29 10:24:11 S 04 03 30.163 -56 55 37.16 – V C57
2020-09-29 10:24:11 s 1 -32985.113 0 +397062.25 2350.0 – C57
2020-09-29 10:34:11 S 04 03 34.018 -56 55 41.81 – V C57
2020-09-29 10:34:11 s 1 -33361.722 0 +397064.38 4760.0 – C57
2020-09-29 10:44:11 S 04 03 37.462 -56 55 48.65 – V C57
2020-09-29 10:44:11 s 1 -33738.262 0 +397065.61 7060.0 – C57
2020-09-29 11:04:11 S 04 03 45.290 -56 56 01.10 – V C57
2020-09-29 11:04:11 s 1 -34491.132 0 +397065.35 1330.0 – C57
2020-09-29 11:14:11 S 04 03 49.478 -56 56 08.41 – V C57
2020-09-29 11:14:11 s 1 -34867.460 0 +397063.86 3300.0 – C57
2020-09-29 11:24:11 S 04 03 52.517 -56 56 18.92 – V C57
2020-09-29 11:24:11 s 1 -35243.717 0 +397061.47 5150.0 – C57
2020-09-29 11:34:11 S 04 03 56.318 -56 56 24.43 – V C57
2020-09-29 11:34:11 s 1 -35619.901 0 +397058.17 6880.0 – C57
2020-09-29 11:44:11 S 04 03 59.530 -56 56 32.68 – V C57
2020-09-29 11:44:11 s 1 -35996.011 0 +397053.96 8500.0 – C57
2020-09-29 12:14:11 S 04 04 12.254 -56 56 56.94 – V C57
2020-09-29 12:14:11 s 1 -37123.890 0 +397035.93 2670.0 – C57
2020-09-29 12:24:11 S 04 04 14.014 -56 56 59.75 – V C57
2020-09-29 12:24:11 s 1 -37499.697 0 +397028.11 3820.0 – C57
2020-09-29 12:34:11 S 04 04 18.528 -56 57 04.61 – V C57
2020-09-29 12:34:11 s 1 -37875.427 0 +397019.39 4860.0 – C57
2020-09-29 12:44:11 S 04 04 21.526 -56 57 15.08 – V C57
2020-09-29 12:44:11 s 1 -38251.077 0 +397009.76 5780.0 – C57
2020-09-29 12:54:11 S 04 04 25.680 -56 57 22.64 – V C57
2020-09-29 12:54:11 s 1 -38626.648 0 +396999.23 6580.0 – C57
2020-09-29 13:04:11 S 04 04 28.968 -56 57 32.72 – V C57
2020-09-29 13:04:11 s 1 -39002.139 0 +396987.80 7260.0 – C57
2020-09-29 13:14:11 S 04 04 33.022 -56 57 34.63 – V C57
2020-09-29 13:14:11 s 1 -39377.549 0 +396975.46 7820.0 – C57
2020-09-29 13:24:11 S 04 04 37.006 -56 57 44.71 – V C57
2020-09-29 13:24:11 s 1 -39752.877 0 +396962.22 8260.0 – C57
2020-09-29 13:34:11 S 04 04 40.370 -56 57 50.47 – V C57
2020-09-29 13:34:11 s 1 -40128.122 0 +396948.08 8580.0 – C57
2020-09-29 13:54:11 S 04 04 47.333 -56 58 00.88 – V C57
2020-09-29 13:54:11 s 1 -40878.361 0 +396917.09 8850.0 – C57
2020-09-29 14:04:11 S 04 04 51.998 -56 58 12.04 – V C57
2020-09-29 14:04:11 s 1 -41253.353 0 +396900.24 8800.0 – C57
2020-09-29 14:14:11 S 04 04 55.150 -56 58 18.12 – V C57
2020-09-29 14:14:11 s 1 -41628.259 0 +396882.49 8620.0 – C57
2020-09-29 14:24:11 S 04 04 59.155 -56 58 21.50 – V C57
2020-09-29 14:24:11 s 1 -42003.078 0 +396863.84 8330.0 – C57
2020-09-29 14:34:11 S 04 05 03.288 -56 58 32.77 – V C57
2020-09-29 14:34:11 s 1 -42377.810 0 +396844.28 7910.0 – C57
2020-09-29 14:44:11 S 04 05 06.679 -56 58 39.72 – V C57
2020-09-29 14:44:11 s 1 -42752.453 0 +396823.83 7360.0 – C57
2020-09-29 14:54:11 S 04 05 10.282 -56 58 43.82 – V C57