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
2020-09-30 10:54:11 s 1 -87180.553 0 +387731.24 6660.0 C57
2020-09-30 11:24:11 S 04 12 59.273 -57 11 12.95 V C57
2020-09-30 11:24:11 s 1 -88252.793 0 +387339.55 5810.0 C57
2020-09-30 11:34:11 S 04 13 03.948 -57 11 16.44 V C57
2020-09-30 11:34:11 s 1 -88609.820 0 +387207.20 5130.0 C57
2020-09-30 11:44:11 S 04 13 07.886 -57 11 22.49 V C57
2020-09-30 11:44:11 s 1 -88966.653 0 +387073.95 4250.0 C57
2020-09-30 11:54:11 S 04 13 12.242 -57 11 25.80 V C57
2020-09-30 11:54:11 s 1 -89323.289 0 +386939.81 3180.0 C57
2020-09-30 12:04:11 S 04 13 15.708 -57 11 33.25 V C57
2020-09-30 12:04:11 s 1 -89679.729 0 +386804.78 1900.0 C57
2020-09-30 12:34:11 S 04 13 27.394 -57 11 47.98 V C57
2020-09-30 12:34:11 s 1 -90747.862 0 +386394.33 6870.0 C57
2020-09-30 12:54:11 S 04 13 35.563 -57 11 57.59 V C57
2020-09-30 12:54:11 s 1 -91458.952 0 +386116.23 2510.0 C57
2020-09-30 13:04:11 S 04 13 39.847 -57 12 05.15 V C57
2020-09-30 13:04:11 s 1 -91814.194 0 +385975.83 30.0 C57
2020-09-30 13:24:11 S 04 13 47.611 -57 12 15.95 V C57
2020-09-30 13:24:11 s 1 -92524.070 0 +385692.37 4440.0 C57
2020-09-30 13:34:11 S 04 13 51.737 -57 12 17.82 V C57
2020-09-30 13:34:11 s 1 -92878.701 0 +385549.30 1350.0 C57
2020-09-30 13:54:11 S 04 13 58.687 -57 12 28.58 V C57
2020-09-30 13:54:11 s 1 -93587.347 0 +385260.47 4530.0 C57
2020-09-30 14:04:11 S 04 14 03.422 -57 12 36.86 V C57
2020-09-30 14:04:11 s 1 -93941.360 0 +385114.71 810.0 C57
2020-09-30 14:24:11 S 04 14 11.602 -57 12 47.20 V C57
2020-09-30 14:24:11 s 1 -94648.760 0 +384820.52 2750.0 C57
2020-09-30 15:04:11 S 04 14 26.758 -57 13 05.05 V C57
2020-09-30 15:04:11 s 1 -96061.033 0 +384221.40 4120.0 C57
2020-09-30 15:34:11 S 04 14 38.734 -57 13 21.90 V C57
2020-09-30 15:34:11 s 1 -97117.998 0 +383762.67 7930.0 C57
2020-09-30 16:04:11 S 04 14 50.450 -57 13 36.01 V C57
2020-09-30 16:04:11 s 1 -98173.017 0 +383295.89 9810.0 C57
2020-09-30 16:14:11 S 04 14 54.941 -57 13 46.16 V C57
2020-09-30 16:14:11 s 1 -98524.252 0 +383138.51 3340.0 C57
2020-09-30 17:34:11 S 04 15 26.225 -57 14 16.73 V C57
2020-09-30 17:34:11 s 1 -101326.14 2 +381847.21 3770.0 C57
2020-09-30 17:44:11 S 04 15 30.343 -57 14 22.60 V C57
2020-09-30 17:44:11 s 1 -101675.36 5 +381681.77 5340.0 C57
2020-09-30 17:54:11 S 04 15 34.692 -57 14 23.60 V C57
2020-09-30 17:54:11 s 1 -102024.35 9 +381515.43 6680.0 C57
2020-09-30 18:14:11 S 04 15 42.434 -57 14 36.17 V C57
2020-09-30 18:14:11 s 1 -102721.65 9 +381180.06 8700.0 C57
2020-09-30 18:24:11 S 04 15 46.992 -57 14 39.30 V C57
2020-09-30 18:24:11 s 1 -103069.96 2 +381011.04 9370.0 C57
2020-09-30 18:44:11 S 04 15 54.595 -57 14 54.49 V C57
2020-09-30 18:44:11 s 1 -103765.87 2 +380670.30 50.0 C57
2020-09-30 18:54:11 S 04 15 58.709 -57 14 51.97 V C57
2020-09-30 18:54:11 s 1 -104113.47 7 +380498.58 50.0 C57
2020-09-30 19:04:11 S 04 16 02.882 -57 15 00.11 V C57