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
2026-03-19 04:34:16 C 08 46 16.608 -01 10 46.88 V G96
2026-03-19 04:41:42 C 08 46 16.471 -01 10 44.83 V G96
2026-03-19 04:49:08 C 08 46 16.345 -01 10 43.32 V G96
2026-03-19 04:56:35 C 08 46 16.223 -01 10 41.48 V G96
2026-04-05 06:24:23 C 08 43 09.735 +00 20 39.50 X F52
2026-04-05 06:46:07 C 08 43 09.721 +00 20 43.63 X F52
2026-04-05 07:07:45 C 08 43 09.710 +00 20 48.05 X F52