4954 Eric (1990 SQ)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4493640870 ± 2.73e-09
Semi-major axis (a)2.0013783818 AU ± 2.52e-10
Inclination (i)17.42720107° ± 2.28e-07
Long. of Asc. Node (Ω)358.39636619° ± 7.59e-07
Arg. of Perihelion (ω)52.62294448° ± 7.90e-07
Mean Anomaly (M)127.17485143° ± 3.08e-07
Mean Motion (n)0.3481115793°/day ± 6.58e-11
Perihelion dist (q)1.10203081 AU ± 5.47e-09
Aphelion dist (Q)2.90072595 AU ± 5.48e-09
Orbital Period2.83135162 yr ± 5.35e-10
Physical Parameters
H (abs. magnitude)12.55
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.070″
Uncertainty0
Orbit TypeAmor
MOID0.193195 AU
Observations Used6261
Gaia Obs Used292
Oppositions27
Arc Total1975-2026
First Observation Used1975-06-07
Last Observation Used2026-04-08
Observations (7184)
Date Type RA Dec Mag Band Observatory
1994-02-20 08:37:14 C 11 10 44.99 +22 37 59.5 z 689
1994-03-07 22:48:59 10 39 49.68 +21 01 22.9 091
1994-03-08 00:31:00 10 39 42.24 +21 00 48.0 091
1994-03-09 23:21:00 10 36 24.23 +20 44 49.9 091
1994-03-10 00:40:59 10 36 18.59 +20 44 21.3 091
1994-03-30 20:15:00 10 12 47.85 +17 25 17.0 15.2 m 026
1994-04-01 04:03:59 10 12 01.35 +17 11 45.4 c 261
1994-04-01 04:48:59 10 12 00.25 +17 11 27.8 c 261
1994-04-20 05:52:31 C 10 08 53.80 +13 56 26.7 z 658
1994-04-20 05:58:01 C 10 08 53.81 +13 56 24.3 z 658
1994-04-20 06:02:59 C 10 08 53.88 +13 56 22.3 z 658
1997-01-11 21:38:32 C 12 59 46.38 +00 24 57.3 16.0 327
1997-01-11 21:53:22 C 12 59 46.62 +00 24 52.6 327
1997-01-11 22:07:07 C 12 59 46.88 +00 24 48.1 327
1997-01-12 20:57:09 C 13 00 10.38 +00 17 29.3 327
1997-01-12 21:12:17 C 13 00 10.50 +00 17 23.5 327
1997-01-12 21:28:14 C 13 00 10.88 +00 17 19.5 15.8 327
1997-02-02 04:03:20 C 13 00 40.59 -01 44 42.7 z 118
1997-02-02 04:13:41 C 13 00 40.41 -01 44 44.7 z 118
1997-02-11 11:49:50 C 12 55 26.89 -02 18 01.4 c 608
1997-02-11 12:17:53 C 12 55 25.96 -02 18 04.6 c 608
1997-02-15 11:15:52 C 12 52 08.13 -02 27 45.7 c 608
1997-02-15 12:13:46 C 12 52 05.87 -02 27 52.0 c 608
1997-02-18 04:35:31 C 12 49 30.22 -02 32 59.2 15.8 z 629
1997-02-18 04:39:37 C 12 49 30.05 -02 32 59.5 15.8 z 629
1997-02-18 04:43:37 C 12 49 29.87 -02 32 59.8 15.6 z 629
1997-02-20 10:52:05 C 12 47 07.08 -02 36 17.6 c 608
1997-02-20 11:26:09 C 12 47 05.55 -02 36 20.0 c 608
1997-03-01 01:05:51 C 12 36 27.17 -02 41 55.7 z 962
1997-03-01 01:19:35 C 12 36 26.30 -02 41 55.7 z 962
1997-03-05 05:23:00 12 30 31.05 -02 40 41.2 17.0 809
1997-03-05 05:41:59 12 30 29.83 -02 40 41.4 809
1997-03-05 06:00:59 12 30 28.64 -02 40 40.8 809
1997-03-05 10:04:30 c 12 30 13.43 -02 40 44.3 i 691
1997-03-05 10:34:50 c 12 30 11.52 -02 40 43.6 i 691
1997-03-05 11:05:07 c 12 30 09.61 -02 40 42.7 i 691
1997-03-06 05:39:00 12 29 01.21 -02 40 05.8 809
1997-03-06 05:57:59 12 29 00.12 -02 40 05.1 809
1997-03-06 06:17:00 12 28 58.91 -02 40 04.6 809
1997-03-11 10:08:11 c 12 21 05.43 -02 35 31.2 i 691
1997-03-11 11:17:53 c 12 21 00.75 -02 35 27.6 i 691
1997-03-11 11:48:26 c 12 20 58.71 -02 35 26.2 i 691
1997-03-15 09:33:43 C 12 14 50.24 -02 30 17.8 a 691
1997-03-15 10:08:02 C 12 14 47.93 -02 30 15.7 a 691
1997-03-15 10:38:36 C 12 14 45.87 -02 30 13.9 a 691
1997-03-17 07:29:34 C 12 11 49.06 -02 27 25.5 i 711
1997-03-17 07:37:28 C 12 11 48.51 -02 27 24.7 i 711
1997-03-31 21:31:14 C 11 49 56.02 -02 03 04.5 z 127
1997-03-31 21:39:03 C 11 49 55.56 -02 03 04.0 z 127
1997-04-01 21:00:31 C 11 48 36.44 -02 01 33.4 z 127