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
2005-05-19 05:56:33 C 14 55 57.94 -26 02 29.8 19.2 o 644
2005-05-19 06:14:18 C 14 55 57.00 -26 02 22.5 20.1 o 644
2005-05-19 06:27:16 C 14 55 56.29 -26 02 17.2 19.7 o 644
2007-02-15 06:21:59 C 09 21 07.56 -05 23 26.3 c 711
2007-02-15 06:40:21 C 09 21 06.71 -05 23 24.1 c 711
2007-02-15 06:58:45 C 09 21 05.98 -05 23 20.4 c 711
2009-05-31 06:47:30 C 16 57 39.38 -23 16 40.6 c 808
2009-06-01 06:00:39 C 16 56 22.92 -23 05 23.0 c 808
2009-06-01 06:17:29 C 16 56 21.68 -23 05 11.9 c 808
2009-06-02 04:45:00 C 16 55 06.73 -22 54 04.6 c 808
2009-06-02 05:01:00 C 16 55 05.90 -22 53 57.8 c 808
2009-06-02 05:17:00 C 16 55 04.93 -22 53 49.4 c 808
2009-06-13 04:00:59 C 16 39 31.17 -20 29 45.5 r 808
2009-06-13 04:11:00 C 16 39 30.40 -20 29 38.6 r 808
2009-06-13 04:21:00 C 16 39 29.76 -20 29 32.4 r 808
2009-06-24 12:40:50 C 16 23 34.26 -17 43 06.0 r E12
2009-06-24 12:56:34 C 16 23 33.43 -17 42 57.2 r E12
2009-06-24 13:12:08 C 16 23 32.53 -17 42 46.1 r E12
2009-06-24 13:27:41 C 16 23 31.63 -17 42 36.7 r E12
2009-06-27 22:17:11 C 16 19 17.74 -16 52 56.1 r J75
2009-06-27 22:36:29 C 16 19 16.74 -16 52 44.3 r J75
2009-06-27 22:55:50 C 16 19 15.73 -16 52 32.7 r J75
2009-07-11 21:56:18 C 16 06 03.13 -13 39 39.7 r J75
2009-07-11 22:15:37 C 16 06 02.56 -13 39 29.7 r J75
2009-07-11 22:34:51 C 16 06 02.01 -13 39 19.4 r J75
2009-07-20 10:41:29 C 16 02 10.95 -12 00 40.4 r 432
2009-07-20 11:19:26 C 16 02 10.45 -12 00 23.8 r 432
2009-07-24 11:54:27 C 16 01 34.21 -11 20 04.4 r E12
2009-07-24 12:08:25 C 16 01 34.14 -11 19 59.2 r E12
2009-07-24 12:22:21 C 16 01 34.10 -11 19 53.4 r E12
2009-07-24 12:36:18 C 16 01 34.03 -11 19 47.7 r E12
2009-10-09 10:31:09 C 18 01 21.14 -06 17 13.5 r E12
2009-10-09 10:38:47 C 18 01 22.15 -06 17 11.2 r E12
2009-11-03 19:05:04 C 19 27 05.42 -04 09 30.1 w 160
2009-11-18 18:03:10 C 20 26 51.78 -02 04 26.3 18.0 o C20
2009-11-18 18:14:13 C 20 26 53.74 -02 04 21.6 18.1 o C20
2009-11-21 17:51:06 C 20 39 28.91 -01 34 46.8 18.3 o C20
2009-11-22 01:12:46 C 20 40 47.39 -01 31 37.7 r 448
2009-11-22 01:19:33 C 20 40 48.59 -01 31 35.1 r 448
2009-11-22 01:23:13 C 20 40 49.22 -01 31 33.6 r 448
2009-11-24 17:27:55 C 20 52 14.47 -01 03 45.2 17.8 o C20
2009-11-24 17:34:16 C 20 52 15.59 -01 03 42.3 18.0 o C20
2009-12-01 16:53:10 C 21 22 35.50 +00 13 42.2 17.9 o C20
2009-12-01 16:55:17 C 21 22 35.91 +00 13 42.8 18.1 o C20
2009-12-02 04:39:46 C 21 24 44.91 +00 19 25.8 568
2009-12-02 05:00:30 C 21 24 48.67 +00 19 35.9 568
2009-12-03 17:31:22 C 21 31 30.37 +00 37 19.1 18.3 o C20
2009-12-03 17:35:36 C 21 31 31.09 +00 37 20.9 18.5 o C20
2009-12-05 18:26:33 C 21 40 30.15 +01 01 29.1 w 160
2009-12-05 18:30:23 C 21 40 30.85 +01 01 30.8 w 160