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
2020-04-12 12:07:03 C 13 44 00.02 -26 08 16.0 – V T08
2020-04-12 12:26:56 C 13 43 58.86 -26 08 14.2 – V T08
2020-04-12 12:38:20 C 13 43 58.21 -26 08 13.7 – V T08
2020-04-16 10:13:30 C 13 38 36.89 -25 58 43.6 – V T08
2020-04-16 10:18:21 C 13 38 36.61 -25 58 42.9 – V T08
2020-04-16 10:26:26 C 13 38 36.13 -25 58 42.0 – V T08
2020-04-16 10:43:25 C 13 38 35.14 -25 58 40.0 – V T08
2020-04-18 09:27:46 C 13 35 54.97 -25 52 47.7 – V T05
2020-04-18 09:32:26 C 13 35 54.71 -25 52 46.9 – V T05
2020-04-18 09:45:43 C 13 35 53.93 -25 52 45.2 – V T05
2020-04-18 09:59:58 C 13 35 53.10 -25 52 43.5 – V T05
2020-04-20 10:15:06 C 13 33 08.71 -25 45 55.5 – V T08
2020-04-20 10:19:45 C 13 33 08.45 -25 45 54.7 – V T08
2020-04-20 10:45:51 C 13 33 06.93 -25 45 50.8 – V T08
2020-04-22 10:08:30 C 13 30 27.37 -25 38 29.6 – V T05
2020-04-22 10:18:01 C 13 30 26.83 -25 38 28.0 – V T05
2020-04-22 10:24:02 C 13 30 26.49 -25 38 27.2 – V T05
2020-04-22 10:38:36 C 13 30 25.65 -25 38 24.7 – V T05
2020-04-24 06:47:29 C 13 27 59.11 -25 31 00.6 – V G96
2020-04-24 06:54:57 C 13 27 58.70 -25 30 59.5 – V G96
2020-04-24 07:02:25 C 13 27 58.27 -25 30 58.0 – V G96
2020-04-24 07:09:53 C 13 27 57.85 -25 30 56.7 – V G96
2020-04-24 07:16:23 C 13 27 57.47 -25 30 55.8 – V 703
2020-04-24 07:22:07 C 13 27 57.21 -25 30 55.0 – V 703
2020-04-24 07:27:51 C 13 27 56.85 -25 30 53.9 – V 703
2020-04-24 07:33:35 C 13 27 56.52 -25 30 52.8 – V 703
2020-04-24 09:40:49 C 13 27 49.61 -25 30 29.9 – V T08
2020-04-24 09:45:27 C 13 27 49.38 -25 30 28.8 – V T08
2020-04-24 09:54:45 C 13 27 48.82 -25 30 27.5 – V T08
2020-04-24 10:42:42 C 13 27 46.11 -25 30 18.7 – V T08
2020-04-26 09:37:06 C 13 25 13.51 -25 21 52.1 – V T05
2020-04-26 09:41:45 C 13 25 13.26 -25 21 51.3 – V T05
2020-04-26 09:51:05 C 13 25 12.75 -25 21 49.5 – V T05
2020-04-26 10:05:35 C 13 25 11.94 -25 21 46.7 – V T05
2020-04-27 07:44:50 C 13 24 02.56 -25 17 43.2 – V 703
2020-04-27 07:52:28 C 13 24 02.16 -25 17 41.6 – V 703
2020-04-27 08:00:05 C 13 24 01.74 -25 17 40.3 – V 703
2020-04-27 08:07:42 C 13 24 01.31 -25 17 38.7 – V 703
2020-04-27 08:13:06 C 13 24 01.00 -25 17 37.6 – V 703
2020-04-27 08:20:47 C 13 24 00.58 -25 17 36.3 – V 703
2020-04-27 08:28:26 C 13 24 00.14 -25 17 35.1 – V 703
2020-04-27 08:36:06 C 13 23 59.77 -25 17 33.3 – V 703
2020-04-28 08:33:31 C 13 22 44.23 -25 12 55.4 – V T08
2020-04-28 08:36:50 C 13 22 44.06 -25 12 54.9 – V T08
2020-04-28 08:41:39 C 13 22 43.80 -25 12 53.9 – V T08
2020-04-28 09:17:35 C 13 22 41.86 -25 12 46.9 – V T08
2020-04-30 05:48:21 C 13 20 23.98 -25 03 55.3 – V G96
2020-04-30 05:56:38 C 13 20 23.55 -25 03 53.6 – V G96
2020-04-30 06:15:59 C 13 20 22.53 -25 03 49.6 – V G96
2020-04-30 06:24:15 C 13 20 22.10 -25 03 47.7 – V G96