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
1975-06-07 10:17:56 A 14 11 29.39 -35 35 43.9 413
1975-06-07 11:17:57 A 14 11 27.17 -35 35 27.8 413
1978-05-27 13:28:49 A 15 25 32.65 -43 39 42.9 413
1980-02-21 15:42:01 A 12 41 02.69 -00 59 50.5 413
1980-02-21 16:47:01 A 12 40 59.37 -00 59 52.7 413
1987-07-17 13:02:29 A 19 48 39.26 -52 28 11.3 413
1987-07-17 13:57:48 A 19 48 33.99 -52 28 18.3 413
1989-03-29 15:56:38 A 14 47 14.09 -32 00 24.8 413
1990-09-15 06:26:29 A 22 23 04.43 -25 51 14.9 675
1990-09-15 07:16:45 A 22 22 58.66 -25 50 14.8 675
1990-09-23 04:06:44 A 22 03 00.54 -21 26 49.1 14.0 675
1990-09-23 04:42:44 A 22 02 56.45 -21 25 50.8 675
1990-09-25 03:53:29 A 21 58 17.82 -20 08 28.4 14.0 675
1990-09-25 08:09:29 A 21 57 51.57 -20 01 13.4 675
1990-09-26 06:08:15 A 21 55 47.10 -19 23 38.0 14.0 675
1990-09-26 07:32:30 A 21 55 38.75 -19 21 11.8 675
1990-09-27 05:16:29 A 21 53 38.88 -18 43 09.7 657
1990-09-27 06:08:15 A 21 53 33.88 -18 41 37.2 657
1990-09-27 12:17:29 A 21 53 00.10 -18 30 34.6 12.5 385
1990-09-27 12:21:29 A 21 52 59.77 -18 30 30.9 385
1990-09-28 15:13:59 21 50 35.36 -17 41 32.9 m 323
1990-09-30 06:02:30 A 21 47 16.36 -16 30 05.0 657
1990-10-06 06:24:00 A 21 36 32.44 -11 45 49.0 657
1990-10-08 12:39:10 A 21 33 12.75 -09 53 49.5 13.0 385
1990-10-08 12:42:52 A 21 33 12.54 -09 53 42.4 385
1990-10-10 12:41:30 A 21 30 35.70 -08 12 36.5 413
1990-10-14 03:38:45 A 21 26 41.04 -05 08 12.6 13.7 675
1990-10-14 09:48:16 A 21 26 25.19 -04 54 56.2 568
1990-10-15 01:22:54 A 21 25 51.43 -04 21 42.5 801
1990-10-15 01:28:17 A 21 25 51.21 -04 21 31.2 801
1990-10-15 05:10:51 A 21 25 43.88 -04 13 25.4 568
1990-10-15 18:08:01 A 21 25 16.64 -03 45 47.7 589
1990-10-15 18:18:00 A 21 25 16.29 -03 45 27.5 589
1990-10-15 18:28:01 A 21 25 15.96 -03 45 06.3 589
1990-10-15 19:08:30 A 21 25 14.35 -03 43 38.6 589
1990-10-15 19:18:29 A 21 25 13.98 -03 43 17.7 589
1990-10-15 19:28:30 A 21 25 13.60 -03 42 56.8 589
1990-10-16 00:32:13 A 21 25 03.54 -03 32 02.2 801
1990-10-16 00:38:59 A 21 25 03.28 -03 31 47.6 801
1990-10-16 22:05:30 A 21 24 21.91 -02 45 49.1 012
1990-10-16 22:24:29 A 21 24 21.23 -02 45 07.2 012
1990-10-17 03:42:00 A 21 24 12.55 -02 33 37.0 675
1990-10-17 04:14:59 A 21 24 11.36 -02 32 26.3 675
1990-10-17 23:23:35 A 21 23 39.77 -01 51 20.9 801
1990-10-17 23:26:56 A 21 23 39.66 -01 51 13.8 801
1990-10-20 23:24:38 A 21 22 04.61 +00 43 24.5 801
1990-10-20 23:28:45 A 21 22 04.52 +00 43 33.3 801
1990-10-21 02:23:45 A 21 22 01.58 +00 49 50.3 675
1990-10-21 03:24:14 A 21 22 00.19 +00 52 00.3 675
1990-10-22 20:12:01 A 21 21 24.86 +02 19 21.4 C 589