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
2013-09-24 02:12:37 C 04 27 30.36 +58 08 29.9 c A24
2013-09-24 14:19:33 C 04 29 16.235 +58 00 36.84 L F51
2013-09-24 14:30:28 C 04 29 17.697 +58 00 29.57 L F51
2013-09-25 02:10:48 C 04 30 58.50 +57 52 26.5 c A24
2013-09-25 02:11:50 C 04 30 58.65 +57 52 25.8 c A24
2013-10-16 01:31:11 C 05 10 45.92 +50 11 58.3 c A24
2013-10-16 01:32:13 C 05 10 45.87 +50 11 56.6 c A24
2013-10-16 02:32:04 C 05 10 46.82 +50 10 51.1 c A24
2013-10-16 02:33:07 C 05 10 46.91 +50 10 49.6 c A24
2013-10-18 07:14:09 C 05 11 43.02 +49 11 07.0 u H21
2013-10-18 07:19:36 C 05 11 43.06 +49 11 00.9 u H21
2013-10-18 07:25:04 C 05 11 43.10 +49 10 54.8 u H21
2013-10-18 07:30:10 C 05 11 43.13 +49 10 49.1 u H21
2013-10-18 07:35:17 C 05 11 43.16 +49 10 43.5 u H21
2013-10-18 07:40:23 C 05 11 43.18 +49 10 37.5 u H21
2013-10-18 07:44:49 C 05 11 43.20 +49 10 32.7 u H21
2013-10-18 08:06:54 C 05 11 43.47 +49 10 08.9 q H45
2013-10-18 08:09:13 C 05 11 43.49 +49 10 06.1 q H45
2013-10-18 08:10:53 C 05 11 43.52 +49 10 04.3 q H45
2013-10-18 08:12:10 C 05 11 43.53 +49 10 02.7 q H45
2013-10-18 08:14:14 C 05 11 43.53 +49 10 00.4 q H45
2013-10-18 08:15:57 C 05 11 43.53 +49 09 58.6 q H45
2013-10-20 09:04:51 C 05 12 06.48 +48 12 50.8 u H21
2013-10-20 09:07:19 C 05 12 06.47 +48 12 47.9 u H21
2013-10-20 09:08:57 C 05 12 06.46 +48 12 45.9 u H21
2013-10-20 09:10:48 C 05 12 06.46 +48 12 43.9 u H21
2013-10-20 09:12:41 C 05 12 06.45 +48 12 41.5 u H21
2013-10-22 20:55:48 C 05 12 02.87 +47 00 25.6 d 162
2013-10-22 21:08:57 C 05 12 02.91 +47 00 08.1 d 162
2013-10-22 21:22:54 C 05 12 02.59 +46 59 53.0 d 162
2013-10-29 19:41:44 C 05 08 53.06 +43 26 05.9 u J93
2013-10-29 19:50:18 C 05 08 52.86 +43 25 55.0 u J93
2013-10-29 19:52:11 C 05 08 52.77 +43 25 52.6 u J93
2013-10-30 08:41:53 C 05 08 28.17 +43 08 57.0 o 926
2013-10-30 09:02:20 C 05 08 27.38 +43 08 29.9 o 926
2013-10-30 09:30:23 C 05 08 26.28 +43 07 52.4 o 926
2013-11-05 12:57:43 C 05 02 34.42 +39 43 08.6 o 300
2013-11-05 13:00:01 C 05 02 34.37 +39 43 05.8 o 300
2013-11-05 13:04:38 C 05 02 34.11 +39 42 59.3 o 300
2013-11-05 13:06:55 C 05 02 33.92 +39 42 56.6 o 300
2013-11-05 13:13:50 C 05 02 33.52 +39 42 45.8 o 300
2013-11-05 13:16:08 C 05 02 33.45 +39 42 42.3 o 300
2013-11-05 13:18:27 C 05 02 33.35 +39 42 40.2 o 300
2013-11-07 01:16:25 C 05 00 48.60 +38 51 13.4 c A24
2013-11-07 01:17:28 C 05 00 48.54 +38 51 12.0 c A24
2013-11-07 02:15:30 C 05 00 45.37 +38 49 48.3 c A24
2013-11-07 02:16:32 C 05 00 45.32 +38 49 46.8 c A24
2013-11-09 01:13:41 C 04 58 22.99 +37 41 52.9 q J93
2013-11-09 01:17:48 C 04 58 22.77 +37 41 46.9 q J93
2013-11-09 01:21:56 C 04 58 22.53 +37 41 41.0 q J93