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
2013-11-22 23:21:42 C 04 39 53.20 +29 39 21.9 w I99
2013-11-22 23:23:42 C 04 39 53.08 +29 39 19.0 w I99
2013-11-22 23:25:40 C 04 39 52.96 +29 39 16.5 w I99
2013-11-24 00:28:17 C 04 38 31.72 +29 04 42.3 q J93
2013-11-24 00:32:25 C 04 38 31.49 +29 04 36.6 q J93
2013-11-24 00:36:32 C 04 38 31.25 +29 04 30.9 q J93
2013-11-24 21:45:31 C 04 37 23.90 +28 35 45.3 o C41
2013-11-24 21:47:05 C 04 37 23.80 +28 35 43.0 o C41
2013-11-24 22:31:22 C 04 37 21.28 +28 34 43.1 o C41
2013-11-24 22:32:47 C 04 37 21.23 +28 34 40.9 o C41
2013-11-25 17:49:14 C 04 36 20.63 +28 08 47.2 q D29
2013-11-25 18:17:53 C 04 36 19.04 +28 08 08.5 q D29
2013-11-25 18:46:30 C 04 36 17.43 +28 07 29.9 q D29
2013-11-26 10:52:07 C 04 35 27.55 +27 46 03.0 q 703
2013-11-26 11:20:43 C 04 35 26.02 +27 45 24.7 q 703
2013-11-26 22:02:51 C 04 34 54.66 +27 31 16.0 c A24
2013-11-26 22:03:53 C 04 34 54.61 +27 31 14.4 c A24
2013-11-26 23:07:20 C 04 34 51.14 +27 29 51.6 c A24
2013-11-26 23:08:26 C 04 34 51.11 +27 29 50.0 c A24
2013-11-27 22:49:00 C 04 33 40.13 +26 58 58.1 c A24
2013-11-27 22:50:02 C 04 33 40.08 +26 58 56.9 c A24
2013-11-27 23:50:09 C 04 33 36.87 +26 57 39.1 c A24
2013-11-27 23:51:12 C 04 33 36.81 +26 57 37.7 c A24
2013-11-28 06:20:16 C 04 33 17.66 +26 49 17.7 u H21
2013-11-28 06:24:04 C 04 33 17.45 +26 49 13.0 u H21
2013-11-28 06:28:44 C 04 33 17.20 +26 49 07.1 u H21
2013-11-28 06:32:58 C 04 33 16.96 +26 49 01.5 u H21
2013-11-28 06:36:45 C 04 33 16.78 +26 48 56.6 u H21
2013-11-28 23:00:19 C 04 32 29.27 +26 27 57.2 c A24
2013-11-28 23:01:21 C 04 32 29.22 +26 27 56.0 c A24
2013-11-29 08:41:00 C 04 32 01.02 +26 15 45.0 q G96
2013-11-29 08:51:05 C 04 32 00.49 +26 15 32.1 q G96
2013-11-29 09:01:09 C 04 31 59.97 +26 15 19.4 q G96
2013-11-29 09:11:13 C 04 31 59.45 +26 15 06.6 q G96
2013-12-01 20:30:27 C 04 29 17.14 +25 01 57.4 q J93
2013-12-01 20:32:29 C 04 29 17.05 +25 01 54.7 q J93
2013-12-01 20:34:34 C 04 29 16.94 +25 01 52.3 q J93
2013-12-01 22:52:07 C 04 29 10.35 +24 59 10.0 c A24
2013-12-01 22:53:10 C 04 29 10.29 +24 59 09.1 c A24
2013-12-01 23:42:45 C 04 29 07.94 +24 58 09.9 t 130
2013-12-01 23:45:38 C 04 29 07.79 +24 58 06.4 t 130
2013-12-01 23:49:13 C 04 29 07.58 +24 58 01.7 t 130
2013-12-01 23:52:06 C 04 29 07.48 +24 57 58.7 t 130
2013-12-01 23:59:53 C 04 29 07.12 +24 57 49.6 c A24
2013-12-02 00:00:55 C 04 29 07.07 +24 57 48.4 c A24
2013-12-02 13:23:10 C 04 28 33.00 +24 41 56.3 q D29
2013-12-02 13:46:05 C 04 28 31.93 +24 41 29.4 q D29
2013-12-02 14:08:58 C 04 28 30.86 +24 41 02.8 q D29
2013-12-02 21:49:57 C 04 28 10.93 +24 31 56.2 c A24
2013-12-02 21:50:59 C 04 28 10.88 +24 31 55.4 c A24