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
2017-11-23 12:41:53 C 08 15 14.02 +10 44 27.3 U 703
2017-11-26 19:39:08 C 08 13 51.58 +10 11 53.0 q D29
2017-11-26 19:40:24 C 08 13 51.56 +10 11 52.1 q D29
2017-11-26 20:07:08 C 08 13 50.97 +10 11 41.3 q D29
2017-11-26 20:08:25 C 08 13 50.93 +10 11 40.9 q D29
2017-11-26 20:35:08 C 08 13 50.33 +10 11 29.8 q D29
2017-11-26 20:36:24 C 08 13 50.31 +10 11 29.5 q D29
2017-11-27 08:55:26 C 08 13 35.14 +10 06 33.4 U 703
2017-11-27 09:03:04 C 08 13 35.01 +10 06 30.7 U 703
2017-11-27 09:10:41 C 08 13 34.84 +10 06 27.4 U 703
2017-11-27 09:18:20 C 08 13 34.67 +10 06 23.3 U 703
2017-12-15 06:46:24 C 07 58 06.40 +07 41 37.2 q W98
2017-12-15 06:56:35 C 07 58 05.85 +07 41 34.1 q W98
2017-12-15 07:07:45 C 07 58 05.19 +07 41 31.1 q W98
2017-12-15 08:43:46 C 07 58 00.67 +07 40 59.6 U 703
2017-12-15 08:51:22 C 07 58 00.29 +07 40 57.3 U 703
2017-12-15 08:59:00 C 07 57 59.89 +07 40 55.7 U 703
2017-12-15 09:06:37 C 07 57 59.43 +07 40 53.3 U 703
2017-12-16 07:53:55 C 07 56 51.41 +07 34 55.5 U G96
2017-12-16 08:01:22 C 07 56 51.02 +07 34 53.7 U G96
2017-12-16 08:08:50 C 07 56 50.63 +07 34 51.7 U G96
2017-12-16 08:16:16 C 07 56 50.23 +07 34 49.9 U G96
2017-12-19 09:40:51 C 07 53 00.46 +07 16 57.7 U G96
2017-12-19 09:49:14 C 07 52 59.80 +07 16 54.6 U G96
2017-12-19 09:51:18 C 07 52 59.69 +07 16 54.0 U G96
2017-12-22 08:41:57 C 07 49 05.39 +07 01 35.5 U 703
2017-12-22 08:49:34 C 07 49 04.95 +07 01 34.1 U 703
2017-12-22 08:57:10 C 07 49 04.50 +07 01 32.1 U 703
2017-12-22 09:04:46 C 07 49 04.08 +07 01 30.9 U 703
2017-12-23 10:53:48 C 07 47 36.18 +06 56 26.9 U T05
2017-12-23 11:06:09 C 07 47 35.45 +06 56 24.4 U T05
2017-12-23 11:17:47 C 07 47 34.75 +06 56 22.0 U T05
2017-12-23 11:29:30 C 07 47 34.08 +06 56 20.2 U T05
2017-12-24 09:28:00 C 07 46 18.07 +06 52 10.8 U G96
2017-12-24 09:35:25 C 07 46 17.64 +06 52 10.1 U G96
2017-12-24 09:42:51 C 07 46 17.19 +06 52 08.4 U G96
2017-12-24 09:50:17 C 07 46 16.74 +06 52 07.4 U G96
2017-12-24 14:56:04 C 07 45 58.77 +06 51 12.3 U T05
2017-12-24 15:02:01 C 07 45 58.46 +06 51 12.2 U T05
2017-12-24 15:14:03 C 07 45 57.75 +06 51 09.5 U T05
2017-12-24 15:37:10 C 07 45 56.36 +06 51 05.6 U T05
2017-12-24 15:49:12 C 07 45 55.63 +06 51 03.1 U T05
2018-01-12 06:53:40 C 07 19 19.84 +06 08 44.7 q H15
2018-01-12 07:03:42 C 07 19 19.19 +06 08 45.0 q H15
2018-01-12 07:12:47 C 07 19 18.59 +06 08 44.6 q H15
2018-01-15 05:33:55 C 07 15 23.63 +06 08 38.4 U G96
2018-01-15 05:41:22 C 07 15 23.21 +06 08 38.6 U G96
2018-01-15 05:48:50 C 07 15 22.81 +06 08 38.7 U G96
2018-01-15 05:56:17 C 07 15 22.38 +06 08 38.8 U G96
2018-02-03 14:53:21 C 06 55 15.59 +06 40 08.5 q D29