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
2021-02-18 10:52:37 C 13 05 04.28 +28 12 52.1 V G96
2021-02-18 10:59:59 C 13 05 03.65 +28 12 56.4 V G96
2021-02-18 11:07:20 C 13 05 03.02 +28 13 00.8 V G96
2021-02-18 11:20:45 C 13 05 01.83 +28 13 08.2 V G96
2021-02-24 10:11:01 C 12 52 33.56 +29 27 15.7 V T08
2021-02-24 10:17:40 C 12 52 32.89 +29 27 18.7 V T08
2021-02-24 10:21:39 C 12 52 32.52 +29 27 20.0 V T08
2021-02-24 10:31:36 C 12 52 31.54 +29 27 25.2 V T08
2021-03-07 08:21:08 C 12 25 52.44 +30 37 29.1 V 703
2021-03-07 08:36:08 C 12 25 50.70 +30 37 31.2 V 703
2021-03-07 08:43:38 C 12 25 49.94 +30 37 32.3 V 703
2021-03-10 08:08:55 C 12 18 23.10 +30 39 33.9 V G96
2021-03-10 08:16:20 C 12 18 22.29 +30 39 33.8 V G96
2021-03-10 08:23:42 C 12 18 21.48 +30 39 33.6 V G96
2021-03-10 08:31:05 C 12 18 20.66 +30 39 33.5 V G96
2021-03-19 06:59:40 C 11 57 33.19 +30 02 02.6 U I41
2021-03-19 07:12:51 C 11 57 31.95 +30 01 58.4 U I41
2021-03-19 08:36:37 C 11 57 24.09 +30 01 31.9 U I41
2021-03-19 08:37:59 C 11 57 23.96 +30 01 31.5 U I41
2021-04-02 06:41:30 C 11 34 10.05 +27 22 15.0 V G96
2021-04-02 06:48:51 C 11 34 09.64 +27 22 10.8 V G96
2021-04-02 06:56:13 C 11 34 09.25 +27 22 06.2 V G96
2021-04-02 07:03:35 C 11 34 08.85 +27 22 01.7 V G96
2021-04-18 06:14:26 C 11 23 11.32 +23 05 33.3 V G96
2021-04-18 06:22:41 C 11 23 11.22 +23 05 28.0 V G96
2021-04-18 06:30:57 C 11 23 11.17 +23 05 22.5 V G96
2021-04-18 06:39:11 C 11 23 11.04 +23 05 17.0 V G96
2021-05-06 05:39:01 C 11 26 31.66 +17 55 29.4 V G96
2021-05-06 05:46:29 C 11 26 31.81 +17 55 24.2 V G96
2021-05-06 05:53:54 C 11 26 31.96 +17 55 19.2 V G96