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
1990-11-08 19:04:07 A 22 14 53.01 +22 51 11.4 010
1990-11-08 19:26:06 A 22 14 57.64 +22 51 02.5 010
1990-11-08 20:01:07 A 22 15 05.33 +22 50 47.0 010
1990-11-09 18:15:59 A 22 20 00.96 +22 41 09.4 010
1990-11-12 19:06:19 A 22 35 58.99 +22 07 44.0 010
1990-11-12 23:23:04 A 22 36 53.95 +22 05 38.0 010
1990-11-14 19:40:04 A 22 46 28.80 +21 44 08.4 010
1990-11-16 23:05:53 A 22 57 27.19 +21 18 20.9 801
1990-11-16 23:11:05 A 22 57 28.29 +21 18 17.6 801
1990-11-18 03:05:30 A 23 03 19.99 +21 04 07.7 16.2 675
1990-11-18 03:40:45 A 23 03 27.17 +21 03 49.8 675
1990-11-19 01:45:02 A 23 08 02.73 +20 52 24.4 801
1990-11-19 01:50:18 A 23 08 03.74 +20 52 21.7 801
1990-11-19 22:59:25 A 23 12 26.36 +20 41 27.6 801
1990-11-19 23:03:55 A 23 12 27.24 +20 41 25.2 801
1990-11-20 23:20:53 A 23 17 24.94 +20 28 53.2 801
1990-11-20 23:24:18 A 23 17 25.62 +20 28 51.5 801
1990-11-23 20:32:59 A 23 31 15.23 +19 53 13.3 010
1990-11-23 21:22:59 A 23 31 24.54 +19 52 49.6 010
1990-12-07 17:57:00 A 00 31 09.97 +17 18 39.9 010
1990-12-07 18:47:00 A 00 31 17.51 +17 18 22.1 010
1990-12-07 18:56:59 A 00 31 19.63 +17 18 17.0 010
1990-12-07 19:07:11 A 00 31 21.18 +17 18 13.1 010
1990-12-14 00:25:17 A 00 54 33.42 +16 24 39.3 801
1990-12-14 00:30:18 A 00 54 34.20 +16 24 37.9 801
1991-01-15 04:23:45 A 02 29 32.37 +14 33 16.0 688
1991-01-15 04:29:55 A 02 29 33.05 +14 33 16.0 688
1991-01-18 18:33:00 A 02 38 24.97 +14 33 33.8 19.0 010
1991-01-18 18:42:59 A 02 38 26.23 +14 33 34.5 010
1991-01-18 18:53:00 A 02 38 27.29 +14 33 35.3 010
1991-01-18 19:43:00 A 02 38 32.41 +14 33 33.9 010
1991-02-11 00:27:37 A 03 31 33.87 +15 04 06.1 801
1994-05-02 18:29:02 C 21 29 47.28 -06 36 42.6 413
1994-05-02 18:32:38 C 21 29 47.69 -06 36 38.6 413
1994-05-02 18:36:16 C 21 29 48.13 -06 36 34.5 413
1994-05-03 19:21:31 C 21 32 42.43 -06 10 20.4 413
1994-05-03 19:25:42 C 21 32 42.91 -06 10 16.3 413
1994-05-04 18:57:49 C 21 35 29.52 -05 44 58.6 413
1994-05-04 19:01:02 C 21 35 29.87 -05 44 55.0 413
1994-07-08 14:06:32 C 01 22 51.69 +29 15 59.3 z 568
1994-07-09 10:18:07 C 01 26 33.28 +29 39 21.3 z 658
1994-07-09 10:25:46 C 01 26 34.65 +29 39 30.2 z 658
1994-07-09 10:29:27 C 01 26 35.30 +29 39 34.4 z 658
1994-09-01 11:55:44 C 05 21 07.86 +37 50 09.8 z 658
1994-09-01 11:59:45 C 05 21 08.49 +37 50 08.7 z 658
1994-09-01 12:03:34 C 05 21 09.00 +37 50 07.4 z 658
1994-10-03 12:27:06 C 06 46 21.02 +31 46 03.3 z 658
1994-10-03 12:31:07 C 06 46 21.32 +31 46 01.0 z 658
1994-10-03 12:35:07 C 06 46 21.62 +31 45 58.4 z 658
1994-10-04 11:56:36 C 06 48 04.36 +31 32 17.0 z 658