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
2013-06-11 09:02:30 C 21 28 09.04 +02 02 56.4 u 703
2013-06-15 02:51:31 C 21 35 51.67 +04 25 51.5 16.9 q G40
2013-06-15 03:16:29 C 21 35 53.76 +04 26 32.6 17.0 q G40
2013-06-15 04:06:31 C 21 35 57.96 +04 27 54.9 16.9 q G40
2013-06-15 04:26:28 C 21 35 59.61 +04 28 27.6 17.0 q G40
2013-06-17 02:21:33 C 21 40 00.03 +05 45 08.3 17.3 q G40
2013-06-17 02:42:01 C 21 40 01.76 +05 45 43.1 17.2 q G40
2013-06-17 03:02:01 C 21 40 03.47 +05 46 17.0 17.2 q G40
2013-06-17 03:36:30 C 21 40 06.38 +05 47 15.7 17.4 q G40
2013-06-19 02:14:34 C 21 44 12.99 +07 07 38.0 q C95
2013-06-19 02:18:43 C 21 44 13.38 +07 07 44.8 q C95
2013-06-19 09:14:04 C 21 44 50.42 +07 19 56.2 u 703
2013-06-19 09:21:29 C 21 44 51.03 +07 20 09.9 u 703
2013-06-19 09:28:51 C 21 44 51.68 +07 20 22.8 u 703
2013-06-21 09:51:00 C 21 49 11.46 +08 46 48.6 u G96
2013-06-21 09:58:39 C 21 49 12.14 +08 47 02.5 u G96
2013-06-21 10:06:15 C 21 49 12.79 +08 47 16.4 u G96
2013-06-21 10:13:52 C 21 49 13.47 +08 47 30.2 u G96
2013-06-29 23:06:29 C 22 08 23.43 +15 22 46.6 q C73
2013-06-29 23:07:39 C 22 08 23.56 +15 22 49.1 q C73
2013-06-29 23:08:49 C 22 08 23.63 +15 22 51.1 q C73
2013-06-29 23:09:57 C 22 08 23.74 +15 22 54.0 q C73
2013-06-29 23:12:17 C 22 08 23.90 +15 22 59.3 q C73
2013-06-29 23:13:26 C 22 08 24.08 +15 23 00.6 q C73
2013-06-29 23:14:36 C 22 08 24.22 +15 23 05.0 q C73
2013-06-29 23:15:46 C 22 08 24.31 +15 23 05.7 q C73
2013-06-29 23:19:15 C 22 08 24.60 +15 23 12.4 q C73
2013-06-29 23:20:24 C 22 08 24.72 +15 23 14.6 q C73
2013-06-29 23:21:34 C 22 08 24.86 +15 23 17.7 q C73
2013-06-29 23:23:53 C 22 08 25.03 +15 23 22.4 q C73
2013-07-08 22:27:32 C 22 30 27.73 +23 02 35.9 q A13
2013-07-08 22:52:41 C 22 30 30.42 +23 03 32.2 q A13
2013-07-12 21:31:33 C 22 41 04.44 +26 35 51.4 15.8 o A92
2013-07-12 21:39:06 C 22 41 05.29 +26 36 08.2 15.7 o A92
2013-07-12 21:43:47 C 22 41 05.80 +26 36 19.2 15.8 o A92
2013-07-12 21:49:00 C 22 41 06.42 +26 36 31.1 15.7 o A92
2013-07-12 21:55:46 C 22 41 07.16 +26 36 45.6 15.7 o A92
2013-07-12 22:04:07 C 22 41 08.10 +26 37 05.2 15.8 o A92
2013-07-12 22:14:01 C 22 41 09.20 +26 37 26.5 15.8 o A92
2013-07-12 22:21:50 C 22 41 10.05 +26 37 46.0 15.8 o A92
2013-07-12 22:30:10 C 22 41 11.02 +26 38 05.2 15.8 o A92
2013-07-18 21:41:37 C 22 58 31.44 +32 04 25.8 q G34
2013-07-18 21:46:59 C 22 58 32.15 +32 04 38.4 q G34
2013-07-18 21:52:20 C 22 58 32.81 +32 04 50.8 q G34
2013-07-23 02:07:24 C 23 11 51.44 +35 52 48.8 r 006
2013-07-23 02:15:52 C 23 11 52.56 +35 53 07.7 r 006
2013-07-23 02:23:53 C 23 11 53.57 +35 53 26.0 r 006
2013-08-02 22:28:11 C 23 52 17.79 +45 13 21.6 u A74
2013-08-02 22:58:56 C 23 52 23.05 +45 14 24.2 u A74
2013-08-02 23:29:41 C 23 52 28.29 +45 15 26.9 u A74