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
1972-02-21 08:24:57 A 19 11 33.70 -34 54 23.6 821
1972-08-13 10:43:39 A 02 25 39.70 +24 35 09.8 695
1972-08-13 11:27:40 A 02 25 39.72 +24 35 30.5 695
1972-09-12 07:34:59 A 02 09 40.37 +28 59 19.7 695
1972-09-12 08:12:59 A 02 09 38.46 +28 59 29.3 695
1972-11-11 04:45:34 A 00 45 03.52 +26 03 38.9 695
1974-12-19 08:56:15 A 09 59.46 +32 50.2 695
1974-12-19 10:08:49 A 09 59.45 +32 50.5 695
1975-01-07 09:10:49 A 09 51 35.25 +34 51 56.4 695
1975-03-04 01:30:19 A 08 14 29.02 +36 15 26.2 A 801
1975-03-14 06:15:59 A 08 01 06.31 +34 27 52.5 693
1975-03-14 07:25:00 A 08 01 03.09 +34 27 15.5 693
1975-10-04 02:35:00 A 18 21 47.21 -32 46 55.5 693
1975-10-05 02:24:59 A 18 27 45.64 -32 20 49.8 693
1975-10-07 02:15:00 A 18 39 20.72 -31 26 58.1 695
1975-10-07 02:38:24 A 18 39 26.22 -31 26 31.2 695
1975-11-02 02:12:00 A 20 30 44.03 -19 30 23.2 693
1975-11-03 02:10:00 A 20 33 56.44 -19 05 27.5 693
1975-11-04 23:32:26 A 20 39 51.74 -18 19 00.5 A 801
1976-01-26 03:02:37 A 23 34 03.16 +05 12 59.5 695
1982-02-20 09:45:00 A 12 17 37.06 +03 28 53.5 688
1982-02-20 11:10:00 A 12 17 35.46 +03 27 35.9 688
1982-02-26 08:55:18 A 12 14 14.17 +00 52 38.8 A 801
1982-03-03 07:16:01 A 12 09 16.48 -01 52 47.9 A 801
1982-03-03 11:39:33 A 12 09 02.23 -01 59 40.9 675
1982-03-27 03:50:55 A 10 49 16.46 -30 34 42.8 A 801
1982-04-23 11:26:59 A 04 37 03.11 -56 13 09.3 323
1982-09-20 08:35:59 A 00 02 23.06 +11 10 12.2 675
1982-09-20 09:26:00 A 00 02 18.90 +11 10 20.4 675
1985-01-22 06:42:20 A 07 43 42.23 +44 34 27.2 C 688
1985-01-22 06:51:00 A 07 43 41.55 +44 34 27.4 C 688
1986-11-25 06:07:30 A 02 32 34.55 +39 52 50.2 688
1986-11-25 06:18:39 A 02 32 34.10 +39 52 47.3 688
1992-10-18 02:13:35 19 50 23.31 -24 05 17.9 F 711
1992-10-19 01:45:34 19 54 16.61 -23 37 09.7 F 711
1996-10-05 08:11:25 C 02 47 55.22 +37 34 58.7 z 684
1996-10-05 08:27:03 C 02 47 54.28 +37 35 00.2 z 684
1996-10-05 08:43:35 C 02 47 53.27 +37 35 02.2 z 684
1996-10-06 06:53:53 C 02 46 44.58 +37 37 09.4 z 684
1996-10-06 07:11:28 C 02 46 43.50 +37 37 11.3 z 684
1996-10-06 07:27:02 C 02 46 42.73 +37 37 13.0 z 684
1996-10-13 05:13:31 C 02 37 30.05 +37 45 45.6 i 711
1996-10-13 05:32:39 C 02 37 28.82 +37 45 45.9 i 711
1999-01-24 11:20:15 C 12 25 55.55 +06 58 05.8 z 711
1999-01-24 11:32:15 C 12 25 56.05 +06 57 58.5 z 711
1999-01-26 17:14:23 C 12 28 15.64 +06 24 04.0 z 428
1999-01-26 17:23:23 C 12 28 16.02 +06 23 58.6 z 428
1999-02-12 15:47:09 C 12 43 24.18 +00 52 20.5 z 428
1999-02-12 15:52:43 C 12 43 24.36 +00 52 14.7 z 428
1999-02-26 07:17:36 C 12 51 18.76 -06 39 16.9 a 704