1863 Antinous (1948 EA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6062665000
Semi-major axis (a)2.2601158000 AU
Inclination (i)18.37865000°
Long. of Asc. Node (Ω)345.55122000°
Arg. of Perihelion (ω)269.07454000°
Mean Anomaly (M)289.56449000°
Mean Motion (n)0.2900734900°/day
Perihelion dist (q)0.88988330 AU
Aphelion dist (Q)3.63034830 AU
Orbital Period3.39778610 yr
Physical Parameters
H (abs. magnitude)15.34
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.800″
Uncertainty0
Orbit TypeApollo
MOID0.187781 AU
Observations Used1490
Oppositions29
Arc Total1948-2026
First Observation Used
Last Observation Used2026-03-21
Observations (1601)
Date Type RA Dec Mag Band Observatory
1999-09-13 22:23:53 C 00 29 58.44 +13 23 56.7 z 151
1999-09-14 20:53:24 C 00 27 46.26 +13 26 16.2 557
1999-09-14 22:23:38 C 00 27 37.27 +13 26 25.2 557
1999-09-15 00:26:07 C 00 27 25.04 +13 26 36.8 557
1999-09-15 01:05:38 C 00 27 21.08 +13 26 40.4 557
1999-09-15 02:01:52 C 00 27 15.47 +13 26 45.4 557
1999-09-18 06:11:08 C 00 19 55.10 +13 31 47.0 17.2 a 704
1999-09-18 06:27:52 c 00 19 53.44 +13 31 47.7 d 703
1999-09-18 06:29:36 C 00 19 53.29 +13 31 47.7 17.4 a 704
1999-09-18 06:45:58 c 00 19 51.68 +13 31 48.3 d 703
1999-09-18 06:47:50 C 00 19 51.53 +13 31 48.6 17.3 a 704
1999-09-18 07:04:07 c 00 19 49.90 +13 31 49.1 d 703
1999-09-18 07:06:12 C 00 19 49.74 +13 31 49.5 17.5 a 704
1999-09-18 07:22:22 c 00 19 48.12 +13 31 49.7 d 703
1999-09-18 07:24:33 C 00 19 47.92 +13 31 50.2 17.2 a 704
1999-09-18 07:59:24 C 00 19 44.487 +13 31 50.50 l 689
1999-09-21 07:40:35 C 00 13 02.808 +13 33 00.54 l 689
1999-09-22 21:41:21 C 00 09 36.69 +13 32 24.0 c 118
1999-09-22 21:56:28 C 00 09 35.31 +13 32 23.5 c 118
1999-10-01 06:41:32 C 23 53 05.266 +13 18 19.45 l 689
1999-10-02 06:36:35 C 23 51 20.145 +13 15 40.98 l 689
1999-10-04 05:58:21 C 23 48 00.77 +13 10 02.5 17.3 a 704
1999-10-04 06:17:34 C 23 47 59.43 +13 10 00.3 17.5 a 704
1999-10-04 06:25:11 C 23 47 58.912 +13 09 58.49 l 689
1999-10-04 06:36:50 C 23 47 58.08 +13 09 57.3 17.5 a 704
1999-10-04 06:56:19 C 23 47 56.70 +13 09 55.6 17.4 a 704
1999-10-09 02:26:19 C 23 40 42.67 +12 54 24.6 c 699
1999-10-09 02:55:32 C 23 40 40.98 +12 54 20.4 c 699
1999-10-09 03:24:45 C 23 40 39.20 +12 54 16.6 c 699
1999-10-10 04:32:00 C 23 39 14.54 +12 50 42.9 a 704
1999-10-10 04:54:15 C 23 39 13.26 +12 50 40.1 a 704
1999-10-10 05:16:31 C 23 39 11.99 +12 50 36.8 a 704
1999-10-10 05:38:44 C 23 39 10.73 +12 50 33.7 a 704
1999-10-10 06:00:57 C 23 39 09.45 +12 50 30.5 a 704
1999-10-19 19:36:53 C 23 29 01.35 +12 17 57.4 c 118
1999-10-19 19:59:30 C 23 29 00.53 +12 17 55.1 c 118
1999-10-20 04:01:44 C 23 28 44.42 +12 16 51.7 a 704
1999-10-20 04:24:11 C 23 28 43.62 +12 16 48.8 a 704
1999-10-20 04:46:37 C 23 28 42.85 +12 16 45.6 a 704
1999-10-20 05:09:06 C 23 28 42.06 +12 16 42.8 a 704
1999-10-20 05:31:31 C 23 28 41.28 +12 16 39.6 a 704
1999-10-28 02:09:55 c 23 23 57.52 +11 54 18.3 d 703
1999-10-28 02:27:16 c 23 23 57.19 +11 54 16.2 d 703
1999-10-28 02:44:37 c 23 23 56.82 +11 54 13.8 d 703
1999-10-28 03:01:55 c 23 23 56.55 +11 54 12.5 d 703
1999-10-31 02:12:33 c 23 22 52.79 +11 47 23.8 d 703
1999-10-31 02:29:55 c 23 22 52.57 +11 47 23.5 d 703
1999-10-31 02:47:17 c 23 22 52.35 +11 47 21.9 d 703
1999-10-31 03:04:38 c 23 22 52.10 +11 47 19.7 d 703
2001-12-19 07:31:35 C 08 38 07.04 +41 24 02.4 c 699