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
2020-09-25 22:04:12 S 03 35 37.560 -55 29 01.64 – V C57
2020-09-25 22:04:12 s 1 +144441.34 3 +269223.78 5340.0 – C57
2020-09-25 22:14:12 S 03 35 40.505 -55 29 06.97 – V C57
2020-09-25 22:14:12 s 1 +144177.47 7 +269761.80 5400.0 – C57
2020-09-25 22:24:12 S 03 35 43.397 -55 29 20.51 – V C57
2020-09-25 22:24:12 s 1 +143912.88 9 +270298.47 5130.0 – C57
2020-09-25 22:34:12 S 03 35 46.178 -55 29 34.55 – V C57
2020-09-25 22:34:12 s 1 +143647.58 1 +270833.78 4500.0 – C57
2020-09-25 22:54:12 S 03 35 52.886 -55 30 04.46 – V C57
2020-09-25 22:54:12 s 1 +143114.82 4 +271900.38 2240.0 – C57
2020-09-25 23:04:11 S 03 35 55.128 -55 30 13.03 – V C57
2020-09-25 23:04:11 s 1 +142847.38 2 +272431.66 600.0 – C57
2020-09-25 23:14:12 S 03 35 58.289 -55 30 30.82 – V C57
2020-09-25 23:14:12 s 1 +142579.23 6 +272961.60 8630.0 – C57
2020-09-25 23:24:12 S 03 36 01.265 -55 30 39.49 – V C57
2020-09-25 23:24:12 s 1 +142310.38 9 +273490.21 6330.0 – C57
2020-09-25 23:44:12 S 03 36 07.006 -55 31 11.39 – V C57
2020-09-25 23:44:12 s 1 +141770.60 9 +274543.40 740.0 – C57
2020-09-25 23:54:12 S 03 36 10.111 -55 31 18.73 – V C57
2020-09-25 23:54:12 s 1 +141499.68 3 +275068.00 7450.0 – C57
2020-09-26 00:04:12 S 03 36 13.092 -55 31 34.64 – V C57
2020-09-26 00:04:12 s 1 +141228.07 1 +275591.26 3830.0 – C57
2020-09-26 00:14:11 S 03 36 16.200 -55 31 46.99 – V C57
2020-09-26 00:14:11 s 1 +140955.77 6 +276113.20 9900.0 – C57
2020-09-26 00:24:12 S 03 36 18.835 -55 32 03.70 – V C57
2020-09-26 00:24:12 s 1 +140682.80 2 +276633.80 5640.0 – C57
2020-09-26 00:44:12 S 03 36 24.994 -55 32 28.28 – V C57
2020-09-26 00:44:12 s 1 +140134.83 2 +277671.04 6180.0 – C57
2020-09-26 00:54:12 S 03 36 27.840 -55 32 41.75 – V C57
2020-09-26 00:54:12 s 1 +139859.84 3 +278187.68 970.0 – C57
2020-09-26 01:04:12 S 03 36 31.099 -55 32 55.82 – V C57
2020-09-26 01:04:12 s 1 +139584.18 9 +278702.99 5460.0 – C57
2020-09-26 01:14:12 S 03 36 33.725 -55 33 09.11 – V C57
2020-09-26 01:14:12 s 1 +139307.87 3 +279216.98 9630.0 – C57
2020-09-26 01:24:11 S 03 36 36.749 -55 33 22.07 – V C57
2020-09-26 01:24:11 s 1 +139030.89 9 +279729.66 3490.0 – C57
2020-09-26 01:34:12 S 03 36 39.629 -55 33 34.67 – V C57
2020-09-26 01:34:12 s 1 +138753.27 0 +280241.03 7040.0 – C57
2020-09-26 01:44:11 S 03 36 42.874 -55 33 46.30 – V C57
2020-09-26 01:44:11 s 1 +138474.99 1 +280751.07 290.0 – C57
2020-09-26 01:54:12 S 03 36 46.068 -55 33 59.69 – V C57
2020-09-26 01:54:12 s 1 +138196.06 3 +281259.81 3230.0 – C57
2020-09-26 02:04:11 S 03 36 48.931 -55 34 12.97 – V C57
2020-09-26 02:04:11 s 1 +137916.49 0 +281767.24 5880.0 – C57
2020-09-26 02:14:12 S 03 36 51.787 -55 34 23.41 – V C57
2020-09-26 02:14:12 s 1 +137636.27 6 +282273.36 8220.0 – C57
2020-09-26 02:24:12 S 03 36 55.006 -55 34 40.22 – V C57
2020-09-26 02:24:12 s 1 +137355.42 5 +282778.17 270.0 – C57
2020-09-26 02:34:12 S 03 36 57.804 -55 34 52.00 – V C57
2020-09-26 02:34:12 s 1 +137073.93 8 +283281.68 2010.0 – C57