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
2021-11-09 11:58:23 C 09 12 29.29 +05 22 50.3 V G96
2021-11-09 12:06:33 C 09 12 29.45 +05 22 47.1 V G96
2021-12-03 10:16:39 C 09 17 33.46 +01 51 21.2 V G96
2021-12-03 10:24:08 C 09 17 33.41 +01 51 19.0 V G96
2021-12-03 10:31:37 C 09 17 33.36 +01 51 16.7 V G96
2021-12-03 10:39:05 C 09 17 33.31 +01 51 14.3 V G96
2021-12-12 19:52:11 C 09 14 56.17 +00 46 28.3 V D29
2021-12-12 20:17:38 C 09 14 55.68 +00 46 21.9 V D29
2021-12-12 20:43:06 C 09 14 55.19 +00 46 14.3 V D29
2022-01-05 06:41:57 C 08 57 19.48 -00 47 19.9 X 858
2022-01-05 07:00:54 C 08 57 18.62 -00 47 20.7 X 858
2022-01-05 07:19:43 C 08 57 17.84 -00 47 21.9 X 858
2022-01-13 19:36:59 C 08 47 53.42 -00 52 39.5 V D29
2022-01-13 19:57:21 C 08 47 52.38 -00 52 40.7 V D29
2022-01-28 06:29:26 C 08 30 43.67 -00 27 07.7 V G96
2022-01-28 06:36:54 C 08 30 43.30 -00 27 06.6 V G96
2022-01-28 06:44:23 C 08 30 42.91 -00 27 06.0 V G96
2022-01-28 06:51:50 C 08 30 42.56 -00 27 05.4 V G96
2022-02-04 07:34:46 C 08 22 41.956 -00 01 27.31 U F52
2022-02-04 07:53:36 C 08 22 41.075 -00 01 24.07 U F52
2022-02-04 08:12:41 C 08 22 40.181 -00 01 20.78 U F52
2022-02-04 08:31:41 C 08 22 39.290 -00 01 17.48 U F52
2022-04-03 03:53:14 C 07 58 55.258 +04 32 58.99 V G96
2022-04-03 04:01:25 C 07 58 55.297 +04 33 00.07 V G96
2022-04-03 04:09:36 C 07 58 55.394 +04 33 01.55 V G96
2022-04-03 04:17:50 C 07 58 55.517 +04 33 02.34 V G96
2023-03-27 08:14:37 C 11 14 45.495 -15 52 51.82 U F51
2023-03-27 08:31:49 C 11 14 44.896 -15 52 47.14 U F51
2023-03-27 08:48:59 C 11 14 44.287 -15 52 42.19 U F51
2023-03-27 09:06:12 C 11 14 43.711 -15 52 37.30 U F51
2023-04-17 07:07:53 C 11 00 35.353 -13 19 28.10 U F52
2023-04-17 07:24:36 C 11 00 34.996 -13 19 23.29 U F52
2023-04-17 07:41:20 C 11 00 34.623 -13 19 18.10 U F52
2023-04-17 07:58:03 C 11 00 34.255 -13 19 12.96 U F52
2024-04-17 11:42:24 C 15 05 07.257 -29 04 41.51 X F51
2024-04-17 11:59:15 C 15 05 06.573 -29 04 38.58 X F51
2024-04-17 12:16:07 C 15 05 05.901 -29 04 35.80 X F51
2024-04-17 12:32:57 C 15 05 05.218 -29 04 32.93 X F51
2024-04-18 10:18:15 C 15 04 14.252 -29 00 45.48 X F52
2024-04-18 10:33:16 C 15 04 13.632 -29 00 42.96 X F52
2024-04-18 10:48:17 C 15 04 13.020 -29 00 40.28 X F52
2024-05-07 09:36:22 C 14 43 08.528 -26 59 25.34 X F51
2024-05-07 10:06:51 C 14 43 06.943 -26 59 14.62 X F51
2024-05-07 10:20:52 C 14 43 06.216 -26 59 09.69 X F51
2024-05-30 07:48:55 C 14 17 27.307 -23 11 19.36 X F52
2024-05-30 08:04:56 C 14 17 26.663 -23 11 12.25 X F52
2024-05-30 08:20:58 C 14 17 26.012 -23 11 05.17 X F52
2024-05-30 08:37:00 C 14 17 25.367 -23 10 58.11 X F52
2024-06-04 08:01:03 C 14 13 06.410 -22 18 05.93 X F52
2024-06-04 08:17:07 C 14 13 05.848 -22 17 58.82 X F52