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
2013-11-09 01:51:37 C 04 58 20.89 +37 41 03.3 q Z81
2013-11-09 02:19:07 C 04 58 19.30 +37 40 23.4 q Z81
2013-11-09 02:57:41 C 04 58 17.05 +37 39 27.0 q Z81
2013-11-09 21:43:35 C 04 57 19.31 +37 12 05.0 r 006
2013-11-09 21:54:08 C 04 57 18.75 +37 11 48.2 r 006
2013-11-09 22:05:55 C 04 57 18.03 +37 11 32.0 r 006
2013-11-11 01:14:51 C 04 55 49.84 +36 31 56.5 q K20
2013-11-11 01:21:12 C 04 55 49.36 +36 31 43.8 16.2 r 238
2013-11-11 01:25:12 C 04 55 49.25 +36 31 41.4 q K20
2013-11-11 01:36:16 C 04 55 48.48 +36 31 21.8 15.7 r 238
2013-11-11 01:37:48 C 04 55 48.50 +36 31 23.3 q K20
2013-11-11 10:37:44 C 04 55 18.70 +36 18 18.9 q 703
2013-11-11 10:45:44 C 04 55 18.22 +36 18 07.2 q 703
2013-11-11 10:53:44 C 04 55 17.72 +36 17 55.1 q 703
2013-11-11 11:01:45 C 04 55 17.25 +36 17 43.4 q 703
2013-11-12 16:18:34 C 04 53 41.66 +35 34 53.6 o 300
2013-11-12 16:20:22 C 04 53 41.60 +35 34 52.5 o 300
2013-11-12 16:23:58 C 04 53 41.36 +35 34 47.1 o 300
2013-11-12 16:25:47 C 04 53 41.24 +35 34 44.0 o 300
2013-11-12 16:29:23 C 04 53 41.13 +35 34 40.6 o 300
2013-11-12 17:48:51 C 04 53 37.70 +35 32 29.4 t L04
2013-11-12 18:16:05 C 04 53 36.21 +35 31 50.8 t L04
2013-11-13 01:50:42 C 04 53 09.60 +35 20 52.7 c A24
2013-11-13 01:51:44 C 04 53 09.53 +35 20 51.2 c A24
2013-11-13 02:51:49 C 04 53 05.93 +35 19 22.4 c A24
2013-11-13 02:52:51 C 04 53 05.86 +35 19 20.9 c A24
2013-11-13 14:28:49 C 04 52 28.36 +35 02 25.3 o 300
2013-11-13 14:30:07 C 04 52 28.24 +35 02 23.6 o 300
2013-11-13 14:31:25 C 04 52 28.23 +35 02 21.6 o 300
2013-11-13 14:32:43 C 04 52 28.08 +35 02 19.6 o 300
2013-11-14 08:06:12 C 04 51 28.26 +34 36 38.0 u H21
2013-11-14 08:08:56 C 04 51 28.10 +34 36 34.0 u H21
2013-11-14 08:10:50 C 04 51 27.98 +34 36 31.1 u H21
2013-11-14 08:13:50 C 04 51 27.80 +34 36 26.7 u H21
2013-11-14 08:18:11 C 04 51 27.53 +34 36 20.3 u H21
2013-11-14 08:23:19 C 04 51 27.22 +34 36 12.8 u H21
2013-11-19 07:10:44 C 04 44 45.45 +31 43 50.9 u H21
2013-11-19 07:13:03 C 04 44 45.32 +31 43 47.6 u H21
2013-11-19 07:16:40 C 04 44 45.10 +31 43 42.1 u H21
2013-11-19 07:18:59 C 04 44 44.96 +31 43 38.8 u H21
2013-11-19 07:22:35 C 04 44 44.72 +31 43 33.8 u H21
2013-11-19 07:25:25 C 04 44 44.55 +31 43 29.6 u H21
2013-11-22 13:26:37 C 04 40 25.82 +29 53 09.5 o 300
2013-11-22 13:27:59 C 04 40 25.70 +29 53 07.9 o 300
2013-11-22 13:29:16 C 04 40 25.71 +29 53 05.8 o 300
2013-11-22 13:30:35 C 04 40 25.63 +29 53 04.6 o 300
2013-11-22 13:31:53 C 04 40 25.54 +29 53 02.8 o 300
2013-11-22 21:38:23 C 04 39 59.25 +29 41 42.4 r Z65
2013-11-22 21:45:31 C 04 39 58.82 +29 41 32.5 r Z65
2013-11-22 21:47:53 C 04 39 58.69 +29 41 29.3 r Z65