IAA RAS IAA Minor Planet Database

1943 Anteros (1973 EC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2559124685 ± 4.56e-09
Semi-major axis (a)1.4305268274 AU ± 2.21e-10
Inclination (i)8.70770606° ± 4.43e-07
Long. of Asc. Node (Ω)246.29352243° ± 3.59e-06
Arg. of Perihelion (ω)338.43657351° ± 3.83e-06
Mean Anomaly (M)260.37411854° ± 1.39e-06
Mean Motion (n)0.5760607241°/day ± 1.34e-10
Perihelion dist (q)1.06443718 AU ± 6.53e-09
Aphelion dist (Q)1.79661648 AU ± 6.53e-09
Orbital Period1.71097636 yr ± 3.97e-10
Physical Parameters
H (abs. magnitude)15.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.170″
Uncertainty0
Orbit TypeAmor
MOID0.061739 AU
Observations Used5660
Gaia Obs Used192
Oppositions20
Arc Total1968-2026
First Observation Used1973-03-10
Last Observation Used2026-04-07
Observations (6464)
Date Type RA Dec Mag Band Observatory
2018-12-17 13:14:39 s 1 -23716.774 0 +378617.43 4440.0 – C57
2018-12-17 13:44:39 S 05 37 23.863 +16 29 59.17 – V C57
2018-12-17 13:44:39 s 1 -24701.679 0 +378856.80 9790.0 – C57
2018-12-17 14:14:39 S 05 37 21.252 +16 29 46.93 – V C57
2018-12-17 14:14:39 s 1 -25686.029 0 +379087.33 8180.0 – C57
2018-12-17 14:44:39 S 05 37 18.662 +16 29 32.89 – V C57
2018-12-17 14:44:39 s 1 -26669.800 0 +379309.03 9740.0 – C57
2018-12-17 15:14:39 S 05 37 16.176 +16 29 23.21 – V C57
2018-12-17 15:14:39 s 1 -27652.971 0 +379521.92 4620.0 – C57
2018-12-17 15:44:39 S 05 37 13.462 +16 29 09.92 – V C57
2018-12-17 15:44:39 s 1 -28635.520 0 +379726.00 2970.0 – C57
2018-12-17 16:14:39 S 05 37 10.925 +16 28 59.34 – V C57
2018-12-17 16:14:39 s 1 -29617.425 0 +379921.28 4900.0 – C57
2018-12-17 16:44:39 S 05 37 08.287 +16 28 45.05 – V C57
2018-12-17 16:44:39 s 1 -30598.663 0 +380107.78 570.0 – C57
2018-12-17 17:14:39 S 05 37 05.710 +16 28 34.36 – V C57
2018-12-17 17:14:39 s 1 -31579.213 0 +380285.50 120.0 – C57
2018-12-17 17:44:39 S 05 37 03.043 +16 28 21.54 – V C57
2018-12-17 17:44:39 s 1 -32559.053 0 +380454.46 3670.0 – C57
2018-12-17 18:14:39 S 05 37 00.518 +16 28 10.96 – V C57
2018-12-17 18:14:39 s 1 -33538.162 0 +380614.66 1360.0 – C57
2018-12-17 18:44:39 S 05 36 57.965 +16 27 58.36 – V C57
2018-12-17 18:44:39 s 1 -34516.516 0 +380766.12 3340.0 – C57
2018-12-17 19:14:39 S 05 36 55.138 +16 27 46.26 – V C57
2018-12-17 19:14:39 s 1 -35494.096 0 +380908.85 9730.0 – C57
2018-12-17 19:44:39 S 05 36 52.666 +16 27 38.34 – V C57
2018-12-17 19:44:39 s 1 -36470.878 0 +381042.85 670.0 – C57
2018-12-17 20:14:39 S 05 36 50.304 +16 27 23.36 – V C57
2018-12-17 20:14:39 s 1 -37446.843 0 +381168.14 6300.0 – C57
2018-12-17 20:44:39 S 05 36 47.477 +16 27 08.71 – V C57
2018-12-17 20:44:39 s 1 -38421.967 0 +381284.72 6740.0 – C57
2018-12-17 21:44:39 S 05 36 42.082 +16 26 47.54 – V C57
2018-12-17 21:44:39 s 1 -40369.608 0 +381491.80 2610.0 – C57
2018-12-17 22:44:39 S 05 36 37.183 +16 26 21.55 – V C57
2018-12-17 22:44:39 s 1 -42313.632 0 +381664.16 9340.0 – C57
2018-12-17 23:14:39 S 05 36 34.613 +16 26 09.60 – V C57
2018-12-17 23:14:39 s 1 -43284.234 0 +381737.34 5860.0 – C57
2018-12-17 23:44:39 S 05 36 31.846 +16 25 56.06 – V C57
2018-12-17 23:44:39 s 1 -44253.866 0 +381801.87 7990.0 – C57
2018-12-18 00:14:39 S 05 36 29.273 +16 25 44.18 – V C57
2018-12-18 00:14:39 s 1 -45222.509 0 +381857.74 5860.0 – C57
2018-12-18 00:44:39 S 05 36 26.743 +16 25 32.02 – V C57
2018-12-18 00:44:39 s 1 -46190.140 0 +381904.98 9590.0 – C57
2018-12-18 01:14:39 S 05 36 24.120 +16 25 20.35 – V C57
2018-12-18 01:14:39 s 1 -47156.739 0 +381943.59 9330.0 – C57
2018-12-18 01:44:39 S 05 36 21.506 +16 25 07.54 – V C57
2018-12-18 01:44:39 s 1 -48122.284 0 +381973.57 5190.0 – C57
2018-12-18 02:14:39 S 05 36 18.984 +16 24 56.09 – V C57
2018-12-18 02:14:39 s 1 -49086.753 0 +381994.94 7310.0 – C57
2018-12-18 02:44:39 S 05 36 16.630 +16 24 43.09 – V C57