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
2021-08-31 07:00:48 C 18 57 03.89 -45 56 15.0 V T05
2021-08-31 07:09:23 C 18 57 03.67 -45 56 09.3 V T05
2021-08-31 07:21:55 C 18 57 03.35 -45 56 00.7 V T05
2021-09-09 20:47:51 S 18 54 57.703 -43 14 20.15 L C51
2021-09-09 23:55:59 S 18 54 58.464 -43 12 03.53 L C51
2021-09-10 03:04:18 S 18 54 59.25 -43 09 46.7 L C51
2021-09-10 06:12:26 S 18 55 00.10 -43 07 29.8 L C51
2021-09-10 09:20:45 S 18 55 01.04 -43 05 12.5 L C51
2021-09-10 10:54:49 S 18 55 01.50 -43 04 04.2 L C51
2021-09-10 12:28:09 S 18 55 01.99 -43 02 55.8 L C51
2021-09-10 17:11:17 S 18 55 03.59 -42 59 29.8 L C51
2021-09-10 20:19:24 S 18 55 04.718 -42 57 12.46 L C51
2021-09-10 20:19:35 S 18 55 04.728 -42 57 12.56 L C51
2021-09-10 23:27:43 S 18 55 05.918 -42 54 55.19 L C51
2021-09-12 06:16:11 C 18 55 21.01 -42 32 29.1 V T05
2021-09-12 06:22:10 C 18 55 21.06 -42 32 24.6 V T05
2021-09-12 06:30:08 C 18 55 21.12 -42 32 18.9 V T05
2021-09-12 06:45:21 C 18 55 21.21 -42 32 07.4 V T05
2021-09-12 06:50:39 C 18 55 21.24 -42 32 03.7 V T05
2021-09-12 06:56:00 C 18 55 21.28 -42 31 59.8 V T05
2021-09-14 06:44:45 C 18 55 56.32 -41 56 46.9 V T08
2021-09-14 06:54:02 C 18 55 56.44 -41 56 40.0 V T08
2021-09-14 07:08:38 C 18 55 56.60 -41 56 29.4 V T08
2021-09-15 16:23:18 S 18 56 29.095 -41 31 45.41 L C51
2021-09-19 00:54:09 C 18 58 13.15 -40 31 46.8 q Y00
2021-09-19 01:00:08 C 18 58 13.38 -40 31 42.4 q Y00
2021-09-19 01:05:43 C 18 58 13.48 -40 31 37.1 q Y00
2021-09-22 06:41:40 C 19 00 27.05 -39 33 28.6 V T08
2021-09-22 06:46:19 C 19 00 27.19 -39 33 24.8 V T08
2021-09-22 06:54:17 C 19 00 27.41 -39 33 19.1 V T08
2021-09-22 07:12:13 C 19 00 27.94 -39 33 05.4 V T08
2021-09-23 23:36:34 C 19 01 49.41 -39 02 33.3 q Y00
2021-09-23 23:41:29 C 19 01 49.71 -39 02 28.2 q Y00
2021-09-23 23:47:35 C 19 01 49.93 -39 02 23.3 q Y00
2021-09-26 06:14:55 C 19 03 52.27 -38 21 14.2 V T08
2021-09-26 06:19:34 C 19 03 52.45 -38 21 10.7 V T08
2021-09-26 06:28:52 C 19 03 52.79 -38 21 03.7 V T08
2021-09-26 06:29:31 C 19 03 52.82 -38 21 03.1 V T08
2021-09-26 06:48:06 C 19 03 53.50 -38 20 48.8 V T08
2021-09-26 06:58:03 C 19 03 53.86 -38 20 41.2 V T08
2021-09-28 05:37:16 C 19 05 49.82 -37 45 13.6 V T05
2021-09-28 05:47:50 C 19 05 50.25 -37 45 05.5 V T05
2021-09-28 05:53:08 C 19 05 50.46 -37 45 01.3 V T05
2021-09-30 06:46:28 C 19 08 01.91 -37 07 42.0 V T08
2021-09-30 06:51:07 C 19 08 02.12 -37 07 38.4 V T08
2021-09-30 06:59:07 C 19 08 02.47 -37 07 32.4 V T08
2021-09-30 07:15:44 C 19 08 03.22 -37 07 19.4 V T08
2021-10-04 06:09:02 C 19 12 47.42 -35 54 26.4 V T08
2021-10-04 06:13:40 C 19 12 47.65 -35 54 22.8 V T08
2021-10-04 06:22:58 C 19 12 48.12 -35 54 15.6 V T08