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
2016-04-21 04:14:38 C 07 01 23.87 +32 04 50.4 o 695
2016-04-21 04:23:05 C 07 01 25.45 +32 04 47.9 o 695
2018-04-09 08:31:07 C 16 09 57.54 -11 15 15.7 o 691
2018-04-09 09:23:59 C 16 09 55.59 -11 15 13.2 o 691
2018-04-10 11:39:14 C 16 08 58.57 -11 13 26.6 o 291
2018-04-10 11:45:43 C 16 08 58.33 -11 13 26.1 o 291
2018-04-10 11:52:10 C 16 08 58.05 -11 13 25.5 o 291
2018-05-06 07:28:56 C 15 29 56.95 -10 28 40.8 o 691
2018-05-06 08:18:10 C 15 29 52.85 -10 28 38.4 o 691
2018-05-07 06:21:03 C 15 28 05.72 -10 27 22.9 o 691
2018-05-07 07:04:22 C 15 28 02.14 -10 27 20.6 o 691
2018-05-07 07:47:33 C 15 27 58.46 -10 27 18.3 o 691
2018-05-08 10:22:16 C 15 25 47.83 -10 25 52.4 o 691
2018-05-08 10:34:48 C 15 25 46.76 -10 25 50.8 o 691
2018-05-08 10:47:21 C 15 25 45.69 -10 25 50.9 o 691
2018-05-11 00:17:14 C 15 20 43.41 -10 22 55.7 c J04
2018-05-11 00:34:04 C 15 20 41.99 -10 22 54.2 c J04
2018-05-11 00:50:54 C 15 20 40.51 -10 22 54.7 c J04
2020-06-16 13:51:32 C 22 39 49.294 -19 32 37.34 U F51
2020-06-16 14:03:21 C 22 39 50.231 -19 32 38.32 U F51
2020-06-16 14:27:00 C 22 39 52.082 -19 32 40.02 U F51
2020-07-17 13:40:04 C 23 40 48.930 -22 40 43.80 U F51
2020-07-17 14:04:17 C 23 40 50.835 -22 40 55.70 U F51
2020-07-17 14:16:24 C 23 40 51.794 -22 41 01.57 U F51
2020-08-10 13:14:05 C 00 31 23.406 -29 43 33.79 U F51
2020-08-10 13:28:54 C 00 31 24.707 -29 43 48.83 U F51
2020-08-10 13:43:41 C 00 31 25.999 -29 44 03.86 U F51
2020-08-10 13:58:30 C 00 31 27.291 -29 44 18.71 U F51
2020-08-16 12:50:21 C 00 45 27.84 -32 19 04.0 V T05
2020-08-16 12:52:59 C 00 45 28.06 -32 19 07.9 V T05
2020-08-16 12:56:56 C 00 45 28.37 -32 19 11.5 V T05
2020-08-16 13:04:11 C 00 45 29.06 -32 19 19.9 V T05
2020-08-18 12:35:44 C 00 50 21.75 -33 15 23.1 V T08
2020-08-18 12:41:03 C 00 50 22.31 -33 15 29.1 V T08
2020-08-18 12:45:42 C 00 50 22.70 -33 15 35.5 V T08
2020-08-18 12:53:41 C 00 50 23.47 -33 15 44.7 V T08
2020-08-28 01:04:14 S 01 15 15.806 -38 23 34.58 V C57
2020-08-28 01:04:14 s 1 +154263.14 1 +160519.10 7640.0 C57
2020-08-28 02:04:14 S 01 15 20.726 -38 24 58.93 V C57
2020-08-28 02:04:14 s 1 +153773.94 2 +165444.07 3360.0 C57
2020-08-28 05:34:14 S 01 15 38.995 -38 30 09.54 V C57
2020-08-28 05:34:14 s 1 +151538.71 6 +182105.03 2830.0 C57
2020-08-28 06:44:14 S 01 15 45.341 -38 31 54.70 V C57
2020-08-28 06:44:14 s 1 +150627.53 7 +187464.42 7460.0 C57
2020-08-28 06:54:14 S 01 15 46.488 -38 32 09.60 V C57
2020-08-28 06:54:14 s 1 +150491.05 9 +188222.29 4090.0 C57
2020-08-28 07:34:14 S 01 15 49.860 -38 33 07.99 V C57
2020-08-28 07:34:14 s 1 +149929.81 6 +191234.56 4270.0 C57
2020-08-28 16:34:14 S 01 16 39.247 -38 46 12.97 V C57
2020-08-28 16:34:14 s 1 +140251.24 3 +229019.58 6410.0 C57