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
2013-12-10 06:50:50 C 04 21 43.85 +21 22 18.4 q 703
2013-12-10 06:52:37 C 04 21 43.77 +21 22 16.6 q 703
2013-12-10 22:11:46 C 04 21 16.85 +21 07 34.4 c A24
2013-12-10 22:12:48 C 04 21 16.82 +21 07 33.4 c A24
2013-12-10 23:11:55 C 04 21 14.92 +21 06 37.2 c A24
2013-12-10 23:12:58 C 04 21 14.88 +21 06 36.2 c A24
2013-12-11 21:40:42 C 04 20 37.51 +20 45 39.1 c A24
2013-12-11 21:41:44 C 04 20 37.49 +20 45 38.0 c A24
2013-12-11 22:41:12 C 04 20 35.65 +20 44 43.3 c A24
2013-12-11 22:42:14 C 04 20 35.67 +20 44 42.5 c A24
2013-12-12 22:20:16 C 04 19 58.66 +20 23 21.2 c A24
2013-12-12 23:23:21 C 04 19 56.86 +20 22 24.2 c A24
2013-12-12 23:24:24 C 04 19 56.84 +20 22 23.5 c A24
2013-12-13 19:31:48 C 04 19 28.11 +20 04 44.8 q A06
2013-12-13 19:39:32 C 04 19 27.91 +20 04 38.4 q A06
2013-12-13 19:47:16 C 04 19 27.71 +20 04 31.9 q A06
2013-12-19 02:57:52 C 04 17 02.83 +18 24 14.5 u H21
2013-12-19 03:01:05 C 04 17 02.78 +18 24 12.3 u H21
2013-12-19 03:03:49 C 04 17 02.75 +18 24 10.6 u H21
2013-12-19 03:06:31 C 04 17 02.70 +18 24 08.7 u H21
2013-12-19 03:10:27 C 04 17 02.62 +18 24 05.9 u H21
2013-12-19 03:14:53 C 04 17 02.53 +18 24 02.6 u H21
2013-12-21 14:45:29 C 04 16 18.83 +17 43 30.2 q D29
2013-12-21 14:48:47 C 04 16 18.66 +17 43 28.6 q D29
2013-12-21 15:15:08 C 04 16 18.43 +17 43 11.2 q D29
2013-12-21 15:18:26 C 04 16 18.38 +17 43 10.2 q D29
2013-12-21 15:44:48 C 04 16 18.04 +17 42 52.5 q D29
2013-12-21 15:48:05 C 04 16 17.97 +17 42 50.0 q D29
2013-12-23 06:09:25 C 04 15 58.29 +17 18 46.6 q 703
2013-12-23 06:16:41 C 04 15 58.21 +17 18 42.6 q 703
2013-12-23 06:23:56 C 04 15 58.12 +17 18 37.8 q 703
2013-12-23 06:31:12 C 04 15 58.03 +17 18 33.4 q 703
2013-12-24 05:05:25 C 04 15 49.44 +17 05 08.0 q G96
2013-12-24 05:19:00 C 04 15 49.32 +17 05 00.2 q G96
2013-12-24 05:32:35 C 04 15 49.20 +17 04 52.2 q G96
2013-12-24 05:46:11 C 04 15 49.08 +17 04 44.4 q G96
2013-12-26 12:54:35 C 04 15 36.60 +16 34 10.0 q D29
2013-12-26 13:20:21 C 04 15 36.47 +16 33 56.4 q D29
2013-12-26 13:46:07 C 04 15 36.34 +16 33 42.9 q D29
2013-12-29 20:18:14 C 04 15 39.28 +15 55 17.6 c A24
2013-12-29 20:19:15 C 04 15 39.27 +15 55 16.7 c A24
2013-12-29 21:47:24 C 04 15 39.34 +15 54 37.1 c A24
2013-12-29 21:48:25 C 04 15 39.34 +15 54 36.6 c A24
2013-12-31 11:33:12 C 04 15 49.78 +15 38 13.8 q D29
2013-12-31 12:00:24 C 04 15 49.86 +15 38 02.5 q D29
2013-12-31 12:27:36 C 04 15 49.95 +15 37 51.4 q D29
2013-12-31 20:22:00 C 04 15 52.66 +15 34 33.1 c A24
2013-12-31 20:23:02 C 04 15 52.67 +15 34 32.7 c A24
2013-12-31 21:21:42 C 04 15 52.91 +15 34 08.3 c A24
2013-12-31 21:22:43 C 04 15 52.91 +15 34 08.1 c A24