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 12:12:01 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:12:41 V 18 41 05.40 -38 40 39.2 16.0 V 247
2021-06-29 12:12:41 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:14:00 V 18 41 05.26 -38 40 43.8 15.2 V 247
2021-06-29 12:14:00 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:14:40 V 18 41 05.17 -38 40 46.3 15.0 V 247
2021-06-29 12:14:40 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:15:19 V 18 41 05.10 -38 40 48.5 14.9 V 247
2021-06-29 12:15:19 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:15:59 V 18 41 05.02 -38 40 50.8 14.3 V 247
2021-06-29 12:15:59 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:16:39 V 18 41 04.94 -38 40 53.1 14.5 V 247
2021-06-29 12:16:39 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:17:18 V 18 41 04.88 -38 40 55.8 14.2 V 247
2021-06-29 12:17:18 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:17:58 V 18 41 04.78 -38 40 58.5 14.1 V 247
2021-06-29 12:17:58 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:18:38 V 18 41 04.73 -38 41 00.3 14.2 V 247
2021-06-29 12:18:38 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:19:18 V 18 41 04.65 -38 41 03.0 14.1 V 247
2021-06-29 12:19:18 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:19:57 V 18 41 04.59 -38 41 05.0 14.2 V 247
2021-06-29 12:19:57 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:20:37 V 18 41 04.48 -38 41 07.8 13.9 V 247
2021-06-29 12:20:37 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:21:17 V 18 41 04.42 -38 41 10.0 14.1 V 247
2021-06-29 12:21:17 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:21:56 V 18 41 04.34 -38 41 12.7 14.4 V 247
2021-06-29 12:21:56 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:22:36 V 18 41 04.28 -38 41 14.7 14.7 V 247
2021-06-29 12:22:36 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:23:16 V 18 41 04.19 -38 41 17.0 15.1 V 247
2021-06-29 12:23:16 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:23:56 V 18 41 04.09 -38 41 19.4 14.9 V 247
2021-06-29 12:23:56 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:24:35 V 18 41 04.06 -38 41 22.0 15.3 V 247
2021-06-29 12:24:35 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:25:15 V 18 41 03.96 -38 41 24.2 15.2 V 247
2021-06-29 12:25:15 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:25:55 V 18 41 03.89 -38 41 26.9 15.2 V 247
2021-06-29 12:25:55 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:26:34 V 18 41 03.81 -38 41 29.3 15.6 V 247
2021-06-29 12:26:34 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:27:14 V 18 41 03.73 -38 41 31.5 14.8 V 247
2021-06-29 12:27:14 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:27:54 V 18 41 03.65 -38 41 33.9 15.1 V 247
2021-06-29 12:27:54 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:28:34 V 18 41 03.58 -38 41 36.5 14.9 V 247
2021-06-29 12:28:34 v 1 201.91295 +21.37100 – – 247
2021-06-29 12:29:13 V 18 41 03.51 -38 41 38.5 15.0 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)