9950 ESA (1990 VB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5329201423 ± 1.43e-08
Semi-major axis (a)2.4385971114 AU ± 3.33e-09
Inclination (i)14.59305729° ± 2.81e-06
Long. of Asc. Node (Ω)253.43982833° ± 6.02e-06
Arg. of Perihelion (ω)103.60390955° ± 7.14e-06
Mean Anomaly (M)74.57697994° ± 2.88e-06
Mean Motion (n)0.2588225988°/day ± 5.31e-10
Perihelion dist (q)1.13901959 AU ± 3.49e-08
Aphelion dist (Q)3.73817463 AU ± 3.53e-08
Orbital Period3.80811524 yr ± 7.81e-09
Physical Parameters
H (abs. magnitude)16.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.272″
Uncertainty0
Orbit TypeAmor
MOID0.279349 AU
Observations Used791
Oppositions27
Arc Total1990-2026
First Observation Used1990-11-08
Last Observation Used2026-04-05
Observations (857)
Date Type RA Dec Mag Band Observatory
2009-12-05 18:34:15 C 21 40 31.56 +01 01 33.2 w 160
2009-12-09 17:47:20 C 21 58 04.89 +01 49 38.0 r 130
2009-12-09 17:50:14 C 21 58 05.47 +01 49 39.4 r 130
2009-12-09 17:53:07 C 21 58 06.01 +01 49 40.9 r 130
2009-12-09 17:55:32 C 21 58 06.35 +01 49 41.8 r 130
2009-12-18 01:36:21 C 22 34 51.02 +03 33 34.6 r 703
2009-12-18 01:44:12 C 22 34 52.46 +03 33 36.6 r 703
2009-12-18 01:52:05 C 22 34 53.86 +03 33 40.5 r 703
2009-12-18 01:59:47 C 22 34 55.30 +03 33 44.6 r 703
2010-01-01 01:45:42 C 23 35 03.10 +06 28 45.3 r 448
2010-01-01 01:49:47 C 23 35 03.74 +06 28 47.0 r 448
2010-01-01 01:54:23 C 23 35 04.60 +06 28 49.2 r 448
2010-01-01 01:59:00 C 23 35 05.45 +06 28 51.5 r 448
2010-01-01 02:03:06 C 23 35 06.18 +06 28 53.6 r 448
2010-01-06 02:05:49 C 23 55 43.22 +07 29 02.9 u 448
2010-01-06 02:11:30 C 23 55 44.18 +07 29 05.2 u 448
2010-01-06 02:15:06 C 23 55 44.76 +07 29 06.8 u 448
2010-01-06 02:18:00 C 23 55 45.23 +07 29 08.6 u 448
2010-01-06 02:22:50 C 23 55 46.07 +07 29 10.8 u 448
2010-01-13 02:55:10 C 00 23 44.52 +08 49 59.0 u 448
2010-01-13 03:04:46 C 00 23 46.08 +08 50 04.0 u 448
2010-01-13 03:14:54 C 00 23 47.68 +08 50 08.7 u 448
2010-01-16 03:03:18 C 00 35 21.04 +09 23 04.0 r 703
2010-01-16 03:13:59 C 00 35 22.70 +09 23 09.0 r 703
2010-01-16 03:24:44 C 00 35 24.39 +09 23 14.3 r 703
2010-01-16 03:35:34 C 00 35 26.16 +09 23 19.5 r 703
2010-01-26 01:48:20 C 01 12 10.08 +11 05 26.6 u 448
2010-01-26 02:00:40 C 01 12 11.83 +11 05 30.7 u 448
2010-01-26 02:13:27 C 01 12 13.80 +11 05 36.4 u 448
2010-02-07 01:41:42 C 01 53 20.67 +12 52 59.2 u 448
2010-02-07 02:04:18 C 01 53 23.74 +12 53 07.2 u 448
2010-02-07 02:14:34 C 01 53 25.14 +12 53 10.6 u 448
2010-02-17 02:01:42 C 02 25 16.89 +14 09 21.2 u 448
2010-02-17 02:16:24 C 02 25 18.74 +14 09 25.7 u 448
2010-02-17 02:33:16 C 02 25 20.89 +14 09 30.5 u 448
2013-05-13 10:34:52 C 20 31 02.92 -11 47 40.8 u 703
2013-05-13 10:43:02 C 20 31 03.61 -11 47 32.6 u 703
2013-05-13 10:51:11 C 20 31 04.29 -11 47 25.2 u 703
2013-05-13 10:59:18 C 20 31 04.90 -11 47 18.2 u 703
2013-05-13 11:07:23 C 20 31 05.66 -11 47 11.1 u 703
2013-05-19 09:22:52 C 20 42 36.81 -09 31 43.4 q H15
2013-05-19 09:38:19 C 20 42 37.94 -09 31 29.2 q H15
2013-05-19 09:53:27 C 20 42 39.04 -09 31 13.2 q H15
2013-05-19 10:08:30 C 20 42 40.36 -09 30 58.1 q H15
2013-06-01 10:05:02 C 21 08 08.98 -03 34 27.1 u 703
2013-06-01 10:17:18 C 21 08 10.03 -03 34 11.4 u 703
2013-06-01 10:29:30 C 21 08 11.00 -03 33 55.1 u 703
2013-06-11 08:40:24 C 21 28 07.21 +02 02 22.9 u 703
2013-06-11 08:47:48 C 21 28 07.86 +02 02 34.1 u 703
2013-06-11 08:55:09 C 21 28 08.47 +02 02 45.2 u 703