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
2017-09-15 00:10:52 C 18 59 16.13 -53 29 51.4 16.7 q I39
2017-09-15 00:21:16 C 18 59 16.34 -53 30 23.3 17.1 q I39
2017-09-15 01:12:12 S 18 59 22.19 -53 32 20.1 L C51
2017-09-15 02:46:27 S 18 59 29.81 -53 37 23.9 L C51
2017-09-15 04:20:42 S 18 59 37.54 -53 42 30.1 L C51
2017-09-15 05:54:57 S 18 59 45.38 -53 47 38.6 L C51
2017-09-15 08:44:37 C 19 00 04.92 -53 57 59.5 o Q62
2017-09-15 09:03:27 S 19 00 01.452 -53 58 02.35 L C51
2017-09-15 09:11:30 C 19 00 05.38 -53 59 30.5 o Q62
2017-09-15 12:11:57 S 19 00 17.971 -54 08 35.27 L C51
2017-09-18 00:40:21 C 19 07 39.16 -58 08 24.3 q W88
2017-09-18 01:00:26 C 19 07 40.76 -58 09 54.2 q W88
2017-09-18 01:16:01 C 19 07 42.02 -58 11 04.1 q W88
2017-09-18 01:30:37 C 19 07 43.22 -58 12 08.1 q W88
2017-09-18 01:45:26 C 19 07 44.50 -58 13 13.1 q W88
2017-09-18 11:29:09 C 19 09 24.40 -58 59 26.6 v Q62
2017-09-18 12:09:24 C 19 09 28.82 -59 02 28.2 v Q62
2017-09-19 12:57:52 C 19 14 46.33 -61 12 18.8 q Q68
2017-09-19 13:00:58 C 19 14 46.92 -61 12 34.3 q Q68
2017-09-19 14:10:42 C 19 15 01.25 -61 18 27.1 q Q68
2017-09-19 14:13:24 C 19 15 01.86 -61 18 40.6 q Q68
2017-09-20 09:30:23 C 19 21 01.91 -63 16 25.2 q Q68
2017-09-20 09:32:24 C 19 21 02.33 -63 16 38.0 q Q68
2017-09-20 10:31:54 C 19 21 15.22 -63 22 50.3 q Q68
2017-09-20 10:34:37 C 19 21 15.82 -63 23 07.1 q Q68
2017-09-21 11:06:48 C 19 31 13.14 -66 12 05.1 q Q68
2017-09-21 11:09:29 C 19 31 14.09 -66 12 23.9 q Q68
2017-09-21 11:18:11 C 19 31 17.51 -66 13 35.1 o Q62
2017-09-21 11:42:32 C 19 31 26.44 -66 16 26.3 o Q62
2017-09-21 11:47:49 C 19 31 28.39 -66 17 03.3 o Q62
2017-09-21 12:06:37 C 19 31 35.49 -66 19 03.9 q Q68
2017-09-21 12:09:29 C 19 31 36.60 -66 19 23.8 q Q68
2017-09-23 10:58:22 C 20 10 24.97 -72 59 21.8 q Q68
2017-09-23 10:59:02 C 20 10 25.72 -72 59 27.9 q Q68
2017-09-25 23:26:43 S 23 58 02.67 -81 06 00.9 L C51
2017-09-26 01:00:58 S 00 09 56.20 -81 06 26.9 L C51
2017-09-26 05:43:21 S 00 45 55.90 -80 58 57.7 L C51
2017-09-26 07:17:36 S 00 57 53.85 -80 53 29.1 L C51
2017-10-01 13:27:17 C 05 39 23.37 -37 54 57.3 L T08
2017-10-01 13:38:34 C 05 39 26.24 -37 50 42.6 L T08
2017-10-01 13:49:50 C 05 39 29.06 -37 46 27.4 L T08
2017-10-01 14:01:07 C 05 39 31.84 -37 42 11.6 L T08
2017-10-06 10:20:00 C 06 03 18.91 -05 34 01.2 o 926
2017-10-06 10:22:44 C 06 03 19.04 -05 33 32.0 o 926
2017-10-06 10:25:27 C 06 03 19.18 -05 33 03.1 o 926
2017-10-07 09:43:05 C 06 05 38.80 -01 43 43.1 o 926
2017-10-07 09:46:12 C 06 05 38.91 -01 43 14.8 o 926
2017-10-07 09:49:24 C 06 05 39.05 -01 42 46.2 o 926
2017-10-10 13:08:43 C 06 10 46.56 +07 11 49.3 L T08
2017-10-10 13:18:56 C 06 10 46.59 +07 12 46.2 L T08
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)