IAA RAS IAA Minor Planet Database

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
2020-05-20 08:14:22 C 13 00 42.30 -23 17 45.0 – V T05
2020-05-20 08:18:58 C 13 00 42.15 -23 17 44.1 – V T05
2020-05-20 08:28:58 C 13 00 41.84 -23 17 41.8 – V T05
2020-05-20 08:44:16 C 13 00 41.38 -23 17 38.5 – V T05
2020-05-20 16:36:16 C 13 00 27.96 -23 15 52.2 – q L68
2020-05-20 16:47:03 C 13 00 27.75 -23 15 52.4 – q L68
2020-05-22 07:49:41 C 12 59 22.26 -23 07 36.3 – V T08
2020-05-22 07:55:04 C 12 59 22.10 -23 07 35.0 – V T08
2020-05-22 08:03:02 C 12 59 21.89 -23 07 33.4 – V T08
2020-05-22 08:21:47 C 12 59 21.36 -23 07 29.5 – V T08
2020-05-23 06:31:04 C 12 58 46.686 -23 02 51.62 – U F52
2020-05-23 06:47:05 C 12 58 46.257 -23 02 48.27 – U F52
2020-05-23 07:03:06 C 12 58 45.825 -23 02 45.01 – U F52
2020-05-23 07:19:10 C 12 58 45.394 -23 02 41.69 – U F52
2020-05-24 05:30:55 C 12 58 12.05 -22 58 07.8 – U I41
2020-05-24 06:36:52 C 12 58 10.37 -22 57 54.2 – U I41
2020-05-24 09:06:35 C 12 58 06.73 -22 57 22.9 – V T05
2020-05-24 09:11:59 C 12 58 06.59 -22 57 21.9 – V T05
2020-05-24 09:19:56 C 12 58 06.39 -22 57 20.0 – V T05
2020-05-24 09:34:00 C 12 58 06.04 -22 57 17.1 – V T05
2020-05-25 07:26:13 C 12 57 35.178 -22 52 51.72 – U F52
2020-05-25 07:43:21 C 12 57 34.758 -22 52 48.27 – U F52
2020-05-25 08:00:31 C 12 57 34.342 -22 52 44.75 – U F52
2020-05-25 08:17:37 C 12 57 33.929 -22 52 41.34 – U F52
2020-05-26 04:35:48 C 12 57 06.74 -22 48 38.8 – V 703
2020-05-26 04:44:33 C 12 57 06.38 -22 48 37.3 – V 703
2020-05-26 04:53:17 C 12 57 06.17 -22 48 35.6 – V 703
2020-05-26 05:02:03 C 12 57 05.80 -22 48 33.2 – V 703
2020-05-26 20:32:55 C 12 56 45.93 -22 45 32.1 – V A16
2020-05-26 20:49:18 C 12 56 45.62 -22 45 28.5 – V A16
2020-05-26 21:05:41 C 12 56 45.27 -22 45 25.2 – V A16
2020-05-26 21:22:02 C 12 56 44.89 -22 45 22.1 – V A16
2020-05-27 03:53:11 C 12 56 36.83 -22 44 05.5 – U I41
2020-05-27 05:07:39 C 12 56 35.17 -22 43 51.1 – V G96
2020-05-27 05:15:20 C 12 56 35.00 -22 43 49.6 – V G96
2020-05-27 05:23:00 C 12 56 34.85 -22 43 48.1 – V G96
2020-05-27 05:30:41 C 12 56 34.67 -22 43 46.6 – V G96
2020-05-27 05:31:07 C 12 56 34.70 -22 43 46.5 – U I41
2020-05-28 08:04:22 C 12 56 02.91 -22 38 40.9 – V T05
2020-05-28 08:09:42 C 12 56 02.78 -22 38 39.7 – V T05
2020-05-28 08:21:01 C 12 56 02.54 -22 38 37.6 – V T05
2020-05-28 08:39:35 C 12 56 02.17 -22 38 34.0 – V T05
2020-05-30 07:41:06 C 12 55 11.36 -22 29 51.8 – V T08
2020-05-30 07:46:24 C 12 55 11.26 -22 29 50.9 – V T08
2020-05-30 07:55:01 C 12 55 11.10 -22 29 49.3 – V T08
2020-05-30 08:09:43 C 12 55 10.84 -22 29 46.6 – V T08
2020-06-05 07:58:13 C 12 53 17.05 -22 05 47.4 – V T05
2020-06-05 08:16:55 C 12 53 16.98 -22 05 44.3 – V T05
2020-06-05 08:32:46 C 12 53 16.83 -22 05 41.7 – V T05
2020-06-05 08:40:13 C 12 53 16.74 -22 05 40.8 – V T05