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
2020-09-03 03:54:13 S 01 32 03.024 -41 48 10.01 – V C57
2020-09-03 03:54:13 s 1 -123315.69 2 +370643.06 6180.0 – C57
2020-09-03 06:34:13 S 01 32 25.944 -41 52 00.80 – V C57
2020-09-03 06:34:13 s 1 -128378.56 9 +367302.15 7800.0 – C57
2020-09-03 07:04:13 S 01 32 30.406 -41 52 36.59 – V C57
2020-09-03 07:04:13 s 1 -129319.50 0 +366650.15 2570.0 – C57
2020-09-03 07:34:13 S 01 32 34.874 -41 53 17.16 – V C57
2020-09-03 07:34:13 s 1 -130257.72 5 +365990.07 5940.0 – C57
2020-09-03 07:44:13 S 01 32 36.144 -41 53 30.70 – V C57
2020-09-03 07:44:13 s 1 -130569.86 1 +365768.24 80.0 – C57
2020-09-03 08:34:13 S 01 32 43.342 -41 54 37.51 – V C57
2020-09-03 08:34:13 s 1 -132125.94 8 +364645.62 8450.0 – C57
2020-09-03 11:04:13 S 01 33 04.870 -41 58 09.12 – V C57
2020-09-03 11:04:13 s 1 -136747.21 7 +361142.61 9350.0 – C57
2020-09-03 11:14:13 S 01 33 06.802 -41 58 19.27 – V C57
2020-09-03 11:14:13 s 1 -137052.73 7 +360901.86 90.0 – C57
2020-09-03 11:24:13 S 01 33 08.554 -41 58 30.76 – V C57
2020-09-03 11:24:13 s 1 -137357.93 0 +360660.20 660.0 – C57
2020-09-03 12:34:13 S 01 33 18.269 -42 00 06.95 – V C57
2020-09-03 12:34:13 s 1 -139485.04 3 +358943.29 9890.0 – C57
2020-09-03 15:24:13 S 01 33 43.188 -42 03 58.90 – V C57
2020-09-03 15:24:13 s 1 -144581.73 4 +354588.77 2320.0 – C57
2020-09-03 18:14:13 S 01 34 08.630 -42 07 55.99 – V C57
2020-09-03 18:14:13 s 1 -149576.01 3 +349971.34 1810.0 – C57
2020-09-03 19:34:13 S 01 34 20.359 -42 09 38.74 – V C57
2020-09-03 19:34:13 s 1 -151889.20 1 +347707.06 40.0 – C57
2020-09-03 19:44:13 S 01 34 21.828 -42 09 51.19 – V C57
2020-09-03 19:44:13 s 1 -152176.63 5 +347419.90 1430.0 – C57
2020-09-03 20:14:13 S 01 34 26.292 -42 10 44.15 – V C57
2020-09-03 20:14:13 s 1 -153036.62 2 +346552.92 4400.0 – C57
2020-09-03 22:04:13 S 01 34 42.631 -42 13 07.18 – V C57
2020-09-03 22:04:13 s 1 -156159.72 1 +343303.23 9650.0 – C57
2020-09-03 23:04:13 S 01 34 52.495 -42 14 35.20 – V C57
2020-09-03 23:04:13 s 1 -157842.80 7 +341483.67 6470.0 – C57
2020-09-04 00:14:13 S 01 35 02.892 -42 16 02.06 – V C57
2020-09-04 00:14:13 s 1 -159787.72 0 +339318.81 1400.0 – C57
2020-09-04 01:44:13 S 01 35 16.622 -42 18 12.42 – V C57
2020-09-04 01:44:13 s 1 -162258.05 8 +336468.68 3460.0 – C57
2020-09-04 04:24:13 S 01 35 40.486 -42 21 45.65 – V C57
2020-09-04 04:24:13 s 1 -166562.80 7 +331215.58 3070.0 – C57
2020-09-04 07:54:13 S 01 36 13.152 -42 26 39.80 – V C57
2020-09-04 07:54:13 s 1 -172035.44 9 +323956.78 9780.0 – C57
2020-09-04 08:34:13 S 01 36 19.843 -42 27 23.90 – V C57
2020-09-04 08:34:13 s 1 -173054.02 7 +322526.99 7240.0 – C57
2020-09-04 09:14:13 S 01 36 26.196 -42 28 22.37 – V C57
2020-09-04 09:14:13 s 1 -174064.74 3 +321082.03 620.0 – C57
2020-09-04 10:14:13 S 01 36 35.126 -42 29 40.74 – V C57
2020-09-04 10:14:13 s 1 -175565.85 4 +318886.11 2900.0 – C57
2020-09-04 11:04:13 S 01 36 43.625 -42 30 56.20 – V C57
2020-09-04 11:04:13 s 1 -176802.84 6 +317029.99 5880.0 – C57