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
2020-09-15 22:04:12 s 1 -66484.466 0 +388730.55 5610.0 – C57
2020-09-15 22:14:12 S 02 25 19.925 -49 49 14.59 – V C57
2020-09-15 22:14:12 s 1 -66852.409 0 +388661.07 660.0 – C57
2020-09-15 22:24:12 S 02 25 21.672 -49 49 27.16 – V C57
2020-09-15 22:24:12 s 1 -67220.197 0 +388590.66 5570.0 – C57
2020-09-15 22:34:12 S 02 25 24.295 -49 49 43.54 – V C57
2020-09-15 22:34:12 s 1 -67587.830 0 +388519.32 320.0 – C57
2020-09-15 22:54:12 S 02 25 28.402 -49 50 11.58 – V C57
2020-09-15 22:54:12 s 1 -68322.623 0 +388373.86 9370.0 – C57
2020-09-15 23:04:12 S 02 25 29.777 -49 50 20.98 – V C57
2020-09-15 23:04:12 s 1 -68689.782 0 +388299.74 3670.0 – C57
2020-09-16 00:14:12 S 02 25 44.122 -49 51 58.50 – V C57
2020-09-16 00:14:12 s 1 -71255.382 0 +387754.93 9500.0 – C57
2020-09-16 00:34:12 S 02 25 49.186 -49 52 25.50 – V C57
2020-09-16 00:34:12 s 1 -71986.932 0 +387590.93 5490.0 – C57
2020-09-16 00:54:12 S 02 25 52.822 -49 52 51.46 – V C57
2020-09-16 00:54:12 s 1 -72717.812 0 +387423.22 850.0 – C57
2020-09-16 01:14:12 S 02 25 57.334 -49 53 21.77 – V C57
2020-09-16 01:14:12 s 1 -73448.015 0 +387251.81 5580.0 – C57
2020-09-16 01:24:12 S 02 25 59.203 -49 53 37.14 – V C57
2020-09-16 01:24:12 s 1 -73812.860 0 +387164.71 7710.0 – C57
2020-09-16 01:44:12 S 02 26 03.653 -49 53 58.67 – V C57
2020-09-16 01:44:12 s 1 -74542.033 0 +386987.74 1480.0 – C57
2020-09-16 01:54:12 S 02 26 05.374 -49 54 10.66 – V C57
2020-09-16 01:54:12 s 1 -74906.360 0 +386897.87 3130.0 – C57
2020-09-16 02:04:12 S 02 26 07.423 -49 54 29.02 – V C57
2020-09-16 02:04:12 s 1 -75270.511 0 +386807.07 4610.0 – C57
2020-09-16 02:14:12 S 02 26 09.658 -49 54 37.04 – V C57
2020-09-16 02:14:12 s 1 -75634.487 0 +386715.35 5940.0 – C57
2020-09-16 02:24:12 S 02 26 12.050 -49 54 56.16 – V C57
2020-09-16 02:24:12 s 1 -75998.287 0 +386622.70 7100.0 – C57
2020-09-16 02:34:12 S 02 26 14.086 -49 55 10.99 – V C57
2020-09-16 02:34:12 s 1 -76361.909 0 +386529.13 8100.0 – C57
2020-09-16 02:54:12 S 02 26 17.734 -49 55 37.09 – V C57
2020-09-16 02:54:12 s 1 -77088.617 0 +386339.20 9600.0 – C57
2020-09-16 03:04:12 S 02 26 20.057 -49 55 45.66 – V C57
2020-09-16 03:04:12 s 1 -77451.701 0 +386242.85 110.0 – C57
2020-09-16 03:14:12 S 02 26 22.430 -49 56 01.68 – V C57
2020-09-16 03:14:12 s 1 -77814.605 0 +386145.58 450.0 – C57
2020-09-16 03:24:12 S 02 26 24.238 -49 56 15.43 – V C57
2020-09-16 03:24:12 s 1 -78177.326 0 +386047.38 630.0 – C57
2020-09-16 03:34:12 S 02 26 26.902 -49 56 30.44 – V C57
2020-09-16 03:34:12 s 1 -78539.864 0 +385948.26 640.0 – C57
2020-09-16 03:44:12 S 02 26 28.534 -49 56 45.67 – V C57
2020-09-16 03:44:12 s 1 -78902.219 0 +385848.21 480.0 – C57
2020-09-16 04:04:12 S 02 26 32.870 -49 57 08.24 – V C57
2020-09-16 04:04:12 s 1 -79626.374 0 +385645.34 9670.0 – C57
2020-09-16 04:14:12 S 02 26 34.361 -49 57 26.24 – V C57
2020-09-16 04:14:12 s 1 -79988.172 0 +385542.51 9010.0 – C57
2020-09-16 04:24:12 S 02 26 36.346 -49 57 34.20 – V C57