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
2013-12-02 22:50:49 C 04 28 08.12 +24 30 45.4 c A24
2013-12-02 22:51:51 C 04 28 08.07 +24 30 44.6 c A24
2013-12-03 03:44:31 C 04 27 56.40 +24 25 03.7 o 691
2013-12-03 04:20:04 C 04 27 54.80 +24 24 22.9 o 691
2013-12-03 04:45:37 C 04 27 53.69 +24 23 52.9 o 691
2013-12-03 05:40:13 C 04 27 51.10 +24 22 49.5 q 703
2013-12-03 05:43:51 C 04 27 50.95 +24 22 46.1 q 703
2013-12-03 05:47:28 C 04 27 50.81 +24 22 42.6 q 703
2013-12-03 05:51:06 C 04 27 50.64 +24 22 37.8 q 703
2013-12-03 07:05:21 C 04 27 47.985 +24 21 12.88 L F51
2013-12-03 07:25:42 C 04 27 47.055 +24 20 49.60 L F51
2013-12-03 07:46:03 C 04 27 46.125 +24 20 26.26 L F51
2013-12-03 08:06:28 C 04 27 45.188 +24 20 02.83 L F51
2013-12-03 17:05:33 C 04 27 22.97 +24 09 30.1 q L22
2013-12-03 17:06:39 C 04 27 22.94 +24 09 28.3 q L22
2013-12-03 17:07:45 C 04 27 22.93 +24 09 27.5 q L22
2013-12-03 17:08:50 C 04 27 22.85 +24 09 26.3 q L22
2013-12-03 17:09:56 C 04 27 22.83 +24 09 24.7 q L22
2013-12-03 17:11:02 C 04 27 22.75 +24 09 24.1 q L22
2013-12-03 17:12:23 C 04 27 22.70 +24 09 22.0 q L22
2013-12-03 22:01:18 C 04 27 10.27 +24 03 53.1 c A24
2013-12-03 22:02:21 C 04 27 10.24 +24 03 52.0 c A24
2013-12-03 23:03:37 C 04 27 07.50 +24 02 41.7 c A24
2013-12-03 23:04:41 C 04 27 07.46 +24 02 40.6 c A24
2013-12-04 16:10:50 C 04 26 25.98 +23 43 19.7 q D29
2013-12-04 16:39:28 C 04 26 24.67 +23 42 46.7 q D29
2013-12-04 17:08:07 C 04 26 23.42 +23 42 14.4 q D29
2013-12-04 22:07:45 C 04 26 12.17 +23 36 34.4 c A24
2013-12-04 22:08:49 C 04 26 12.13 +23 36 33.4 c A24
2013-12-04 23:08:11 C 04 26 09.59 +23 35 27.1 c A24
2013-12-04 23:09:13 C 04 26 09.55 +23 35 25.8 c A24
2013-12-05 21:10:36 C 04 25 19.18 +23 11 05.4 q A06
2013-12-05 21:36:51 C 04 25 18.13 +23 10 37.0 q A06
2013-12-05 22:01:37 C 04 25 17.10 +23 10 10.1 q A06
2013-12-05 22:26:22 C 04 25 16.09 +23 09 43.4 q A06
2013-12-07 22:28:25 C 04 23 32.49 +22 18 39.6 c A24
2013-12-07 22:29:28 C 04 23 32.43 +22 18 38.4 c A24
2013-12-07 23:29:17 C 04 23 30.18 +22 17 36.5 c A24
2013-12-07 23:30:19 C 04 23 30.16 +22 17 35.5 c A24
2013-12-09 15:42:31 C 04 22 11.58 +21 37 04.8 q D29
2013-12-09 16:34:03 C 04 22 09.79 +21 36 13.9 q D29
2013-12-09 23:01:29 C 04 21 58.23 +21 29 52.7 u J27
2013-12-09 23:13:59 C 04 21 57.80 +21 29 40.4 u J27
2013-12-09 23:18:35 C 04 21 57.64 +21 29 36.0 u J27
2013-12-10 06:22:18 C 04 21 44.81 +21 22 46.7 q 703
2013-12-10 06:24:05 C 04 21 44.73 +21 22 44.7 q 703
2013-12-10 06:31:48 C 04 21 44.50 +21 22 37.3 q 703
2013-12-10 06:33:35 C 04 21 44.40 +21 22 35.5 q 703
2013-12-10 06:41:19 C 04 21 44.18 +21 22 27.9 q 703
2013-12-10 06:43:06 C 04 21 44.08 +21 22 26.4 q 703