496817 (1989 VB)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4601554069 ± 3.08e-09
Semi-major axis (a)1.8618659382 AU ± 1.31e-09
Inclination (i)2.18435699° ± 8.97e-07
Long. of Asc. Node (Ω)37.83399525° ± 1.36e-05
Arg. of Perihelion (ω)330.93109875° ± 1.38e-05
Mean Anomaly (M)73.57353775° ± 1.36e-06
Mean Motion (n)0.3879624256°/day ± 4.09e-10
Perihelion dist (q)1.00511826 AU ± 5.78e-09
Aphelion dist (Q)2.71861362 AU ± 6.05e-09
Orbital Period2.54051995 yr ± 2.68e-09
Physical Parameters
H (abs. magnitude)19.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.293″
Uncertainty0
Orbit TypeApollo
MOID0.015902 AU
Observations Used279
Radar Obs Used6
Oppositions17
Arc Total1989-2022
First Observation Used1989-11-03
Last Observation Used2022-12-27
Observations (304)
Date Type RA Dec Mag Band Observatory
2022-12-27 02:37:56 C 00 51 08.017 +08 15 48.82 V G96
2022-12-27 02:46:07 C 00 51 09.540 +08 15 59.98 V G96
2022-12-27 02:54:19 C 00 51 11.167 +08 16 10.81 V G96
2022-12-27 03:02:27 C 00 51 12.726 +08 16 22.04 V G96
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-10-03 10:20:00 -180191.753 0.5 Hz 8560 -14 -14
2017-10-03 10:30:00 23996339.94 2 us 8560 -14 -14
2017-10-03 10:30:00 -181144.696 0.3 Hz 8560 -14 -14
2017-10-03 13:00:00 24195070.9 0.5 us 8560 -14 -14
2017-10-04 10:00:00 26072204.437 0.2 us 8560 -14 -14
2017-10-10 11:10:00 43139408.2 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)