IAA RAS IAA Minor Planet Database

450263 (2003 WD158)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4091625420 ± 1.52e-08
Semi-major axis (a)1.4263477944 AU ± 1.46e-09
Inclination (i)16.72793841° ± 7.91e-07
Long. of Asc. Node (Ω)92.19813289° ± 5.62e-07
Arg. of Perihelion (ω)102.36816257° ± 3.09e-06
Mean Anomaly (M)248.55192838° ± 1.20e-06
Mean Motion (n)0.5785942639°/day ± 8.91e-10
Perihelion dist (q)0.84273971 AU ± 2.17e-08
Aphelion dist (Q)2.00995588 AU ± 2.18e-08
Orbital Period1.70348437 yr ± 2.62e-09
Physical Parameters
H (abs. magnitude)18.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.544″
Uncertainty0
Orbit TypeApollo
MOID0.046080 AU
Observations Used5311
Radar Obs Used4
Oppositions7
Arc Total2003-2026
First Observation Used2003-11-30
Last Observation Used2026-01-22
Observations (10017)
Date Type RA Dec Mag Band Observatory
2021-06-29 10:52:34 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:53:14 V 18 41 14.61 -38 35 48.2 14.4 V 247
2021-06-29 10:53:14 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:53:53 V 18 41 14.53 -38 35 50.3 14.5 V 247
2021-06-29 10:53:53 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:54:33 V 18 41 14.47 -38 35 52.7 14.3 V 247
2021-06-29 10:54:33 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:55:13 V 18 41 14.41 -38 35 55.1 14.4 V 247
2021-06-29 10:55:13 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:55:52 V 18 41 14.34 -38 35 57.9 14.4 V 247
2021-06-29 10:55:52 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:56:32 V 18 41 14.29 -38 36 00.4 14.2 V 247
2021-06-29 10:56:32 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:57:12 V 18 41 14.19 -38 36 03.0 14.3 V 247
2021-06-29 10:57:12 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:57:52 V 18 41 14.12 -38 36 05.1 14.7 V 247
2021-06-29 10:57:52 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:58:31 V 18 41 14.04 -38 36 07.7 14.9 V 247
2021-06-29 10:58:31 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:59:11 V 18 41 13.97 -38 36 10.1 14.7 V 247
2021-06-29 10:59:11 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:59:51 V 18 41 13.89 -38 36 12.6 15.2 V 247
2021-06-29 10:59:51 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:00:30 V 18 41 13.78 -38 36 15.2 15.1 V 247
2021-06-29 11:00:30 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:01:10 V 18 41 13.72 -38 36 17.7 15.5 V 247
2021-06-29 11:01:10 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:01:50 V 18 41 13.65 -38 36 20.0 15.3 V 247
2021-06-29 11:01:50 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:02:29 V 18 41 13.57 -38 36 22.5 15.4 V 247
2021-06-29 11:02:29 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:03:09 V 18 41 13.47 -38 36 24.7 14.9 V 247
2021-06-29 11:03:09 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:03:49 V 18 41 13.41 -38 36 27.2 14.9 V 247
2021-06-29 11:03:49 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:04:29 V 18 41 13.35 -38 36 30.1 15.1 V 247
2021-06-29 11:04:29 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:05:08 V 18 41 13.28 -38 36 32.7 14.8 V 247
2021-06-29 11:05:08 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:05:48 V 18 41 13.20 -38 36 35.1 15.2 V 247
2021-06-29 11:05:48 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:06:28 V 18 41 13.11 -38 36 37.0 15.0 V 247
2021-06-29 11:06:28 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:07:07 V 18 41 13.03 -38 36 39.5 15.2 V 247
2021-06-29 11:07:07 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:07:47 V 18 41 12.95 -38 36 42.5 14.8 V 247
2021-06-29 11:07:47 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:08:27 V 18 41 12.88 -38 36 44.4 14.9 V 247
2021-06-29 11:08:27 v 1 201.91295 +21.37100 – – 247
2021-06-29 11:09:07 V 18 41 12.81 -38 36 47.2 15.2 V 247
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-06-12 04:20:00 330282.96 0.04 Hz 8560 -14 -14
2021-06-12 04:40:00 57906827.55 1 us 8560 -14 -14
2021-06-12 14:10:00 270117.786 0.04 Hz 8560 -14 -14
2021-06-12 15:10:00 56587103.74 0.125 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)