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
2019-01-09 19:39:30 C 04 56 50.82 +12 52 52.0 – q Z45
2019-01-09 19:49:23 C 04 56 50.39 +12 52 49.2 – q Z45
2019-01-09 20:00:35 C 04 56 49.65 +12 52 46.3 – q Z45
2019-01-12 09:03:40 C 04 53 43.47 +12 36 15.1 – V T05
2019-01-12 09:08:12 C 04 53 43.24 +12 36 13.9 – V T05
2019-01-12 09:08:51 C 04 53 43.20 +12 36 13.6 – V T05
2019-01-12 09:28:32 C 04 53 42.19 +12 36 08.5 – V T05
2019-01-12 09:29:12 C 04 53 42.17 +12 36 08.4 – V T05
2019-01-12 09:29:52 C 04 53 42.12 +12 36 08.3 – V T05
2019-01-12 09:31:11 C 04 53 42.05 +12 36 07.9 – V T05
2019-01-12 09:41:02 C 04 53 41.56 +12 36 05.3 – V T05
2019-01-13 20:01:15 C 04 52 07.84 +12 27 29.1 – q L05
2019-01-13 20:44:07 C 04 52 05.81 +12 27 18.7 – q L05
2019-01-14 08:39:57 C 04 51 34.58 +12 24 34.5 – V T08
2019-01-14 09:01:42 C 04 51 33.58 +12 24 29.1 – V T08
2019-01-14 09:10:10 C 04 51 33.20 +12 24 27.2 – V T08
2019-01-14 09:28:04 C 04 51 32.38 +12 24 23.1 – V T08
2019-01-14 20:14:33 C 04 51 05.64 +12 21 49.2 – q 160
2019-01-14 20:17:28 C 04 51 05.55 +12 21 47.8 – q 160
2019-01-14 20:20:30 C 04 51 05.41 +12 21 47.4 – q 160
2019-01-15 04:24:33 C 04 50 45.52 +12 20 00.5 – V 703
2019-01-15 04:31:31 C 04 50 45.21 +12 19 59.0 – V 703
2019-01-15 04:38:30 C 04 50 44.89 +12 19 57.3 – V 703
2019-01-15 04:45:29 C 04 50 44.61 +12 19 55.7 – V 703
2019-01-16 07:57:53 C 04 49 40.69 +12 14 03.1 – V T05
2019-01-16 08:19:01 C 04 49 39.82 +12 13 58.4 – V T05
2019-01-16 08:19:40 C 04 49 39.80 +12 13 58.4 – V T05
2019-01-16 08:29:16 C 04 49 39.41 +12 13 56.3 – V T05
2019-01-21 07:43:34 C 04 45 55.525 +11 52 13.41 – U F52
2019-01-21 08:15:51 C 04 45 54.613 +11 52 08.40 – U F52
2019-01-21 08:31:56 C 04 45 54.161 +11 52 05.87 – U F52
2019-01-21 10:02:57 C 04 45 51.66 +11 51 51.3 – V T05
2019-01-21 10:04:12 C 04 45 51.60 +11 51 51.4 – V T08
2019-01-21 10:15:29 C 04 45 51.31 +11 51 49.6 – V T08
2019-01-21 10:21:26 C 04 45 51.14 +11 51 48.8 – V T08
2019-01-21 10:21:58 C 04 45 51.12 +11 51 48.4 – V T05
2019-01-21 10:22:37 C 04 45 51.10 +11 51 48.1 – V T05
2019-01-21 10:36:28 C 04 45 50.76 +11 51 46.0 – V T05
2019-01-21 10:43:34 C 04 45 50.55 +11 51 45.4 – V T08
2019-01-22 08:56:54 C 04 45 19.44 +11 48 29.5 – V T08
2019-01-22 09:11:01 C 04 45 19.11 +11 48 27.2 – V T08
2019-01-22 09:25:11 C 04 45 18.73 +11 48 25.0 – V T08
2019-01-22 09:39:15 C 04 45 18.38 +11 48 22.9 – V T08
2019-01-24 08:02:04 C 04 44 23.42 +11 42 17.0 – V T05
2019-01-24 08:22:56 C 04 44 23.00 +11 42 14.6 – V T05
2019-01-24 08:32:00 C 04 44 22.81 +11 42 13.5 – V T05
2019-01-24 08:32:39 C 04 44 22.81 +11 42 13.5 – V T05
2019-01-25 19:55:08 C 04 43 50.06 +11 38 08.9 – q 160
2019-01-25 19:57:49 C 04 43 50.05 +11 38 09.0 – q 160
2019-01-25 20:00:43 C 04 43 50.00 +11 38 09.7 – q 160