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 08:19:40 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:20:20 V 18 41 32.55 -38 26 08.7 15.3 V 247
2021-06-29 08:20:20 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:21:00 V 18 41 32.49 -38 26 11.2 15.3 V 247
2021-06-29 08:21:00 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:21:40 V 18 41 32.42 -38 26 14.6 14.9 V 247
2021-06-29 08:21:40 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:22:19 V 18 41 32.33 -38 26 17.0 15.2 V 247
2021-06-29 08:22:19 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:22:59 V 18 41 32.29 -38 26 19.5 15.0 V 247
2021-06-29 08:22:59 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:23:39 V 18 41 32.15 -38 26 22.0 15.3 V 247
2021-06-29 08:23:39 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:25:38 V 18 41 31.99 -38 26 30.2 15.6 V 247
2021-06-29 08:25:38 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:26:18 V 18 41 31.90 -38 26 31.7 14.9 V 247
2021-06-29 08:26:18 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:27:37 V 18 41 31.76 -38 26 37.2 15.6 V 247
2021-06-29 08:27:37 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:28:17 V 18 41 31.68 -38 26 40.4 15.7 V 247
2021-06-29 08:28:17 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:28:56 V 18 41 31.61 -38 26 42.8 15.2 V 247
2021-06-29 08:28:56 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:29:36 V 18 41 31.49 -38 26 45.7 15.4 V 247
2021-06-29 08:29:36 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:30:16 V 18 41 31.42 -38 26 48.1 15.1 V 247
2021-06-29 08:30:16 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:31:35 V 18 41 31.29 -38 26 52.9 15.1 V 247
2021-06-29 08:31:35 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:32:15 V 18 41 31.18 -38 26 55.0 14.9 V 247
2021-06-29 08:32:15 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:32:55 V 18 41 31.10 -38 26 58.3 14.8 V 247
2021-06-29 08:32:55 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:34:14 V 18 41 30.98 -38 27 02.7 14.7 V 247
2021-06-29 08:34:14 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:34:54 V 18 41 30.92 -38 27 05.8 14.6 V 247
2021-06-29 08:34:54 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:36:13 V 18 41 30.79 -38 27 10.8 14.9 V 247
2021-06-29 08:36:13 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:36:53 V 18 41 30.64 -38 27 12.3 15.1 V 247
2021-06-29 08:36:53 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:49:35 V 18 41 29.21 -38 28 02.5 15.5 V 247
2021-06-29 08:49:35 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:50:15 V 18 41 29.10 -38 28 04.4 15.2 V 247
2021-06-29 08:50:15 v 1 201.91295 +21.37100 – – 247
2021-06-29 09:01:05 V 18 41 27.78 -38 28 45.3 14.9 V 247
2021-06-29 09:01:05 v 1 201.91295 +21.37100 – – 247
2021-06-29 09:01:44 V 18 41 27.69 -38 28 47.5 14.8 V 247
2021-06-29 09:01:44 v 1 201.91295 +21.37100 – – 247
2021-06-29 09:02:24 V 18 41 27.64 -38 28 50.1 14.7 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)