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
2021-06-28 09:41:26 V 18 43 41.93 -36 55 22.0 15.3 V 247
2021-06-28 09:41:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:41:58 V 18 43 41.82 -36 55 24.2 14.9 V 247
2021-06-28 09:41:58 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:42:29 V 18 43 41.78 -36 55 27.1 14.3 V 247
2021-06-28 09:42:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:43:01 V 18 43 41.72 -36 55 29.2 14.7 V 247
2021-06-28 09:43:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:43:33 V 18 43 41.66 -36 55 31.4 14.1 V 247
2021-06-28 09:43:33 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:44:05 V 18 43 41.59 -36 55 33.5 14.3 V 247
2021-06-28 09:44:05 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:44:36 V 18 43 41.51 -36 55 36.0 14.1 V 247
2021-06-28 09:44:36 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:45:08 V 18 43 41.46 -36 55 38.2 14.1 V 247
2021-06-28 09:45:08 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:45:40 V 18 43 41.39 -36 55 40.6 14.0 V 247
2021-06-28 09:45:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:46:12 V 18 43 41.32 -36 55 43.1 14.1 V 247
2021-06-28 09:46:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:46:44 V 18 43 41.25 -36 55 45.2 14.2 V 247
2021-06-28 09:46:44 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:47:15 V 18 43 41.22 -36 55 47.3 14.7 V 247
2021-06-28 09:47:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:47:47 V 18 43 41.13 -36 55 49.4 15.0 V 247
2021-06-28 09:47:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:48:19 V 18 43 41.06 -36 55 51.8 14.8 V 247
2021-06-28 09:48:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:48:51 V 18 43 41.00 -36 55 54.2 14.7 V 247
2021-06-28 09:48:51 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:49:22 V 18 43 40.93 -36 55 56.1 15.1 V 247
2021-06-28 09:49:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:49:54 V 18 43 40.85 -36 55 58.8 14.9 V 247
2021-06-28 09:49:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:50:26 V 18 43 40.79 -36 56 01.2 15.1 V 247
2021-06-28 09:50:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:50:58 V 18 43 40.74 -36 56 03.1 15.0 V 247
2021-06-28 09:50:58 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:51:29 V 18 43 40.64 -36 56 06.1 14.5 V 247
2021-06-28 09:51:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:52:01 V 18 43 40.59 -36 56 07.9 14.7 V 247
2021-06-28 09:52:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:52:33 V 18 43 40.53 -36 56 10.3 14.9 V 247
2021-06-28 09:52:33 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:53:05 V 18 43 40.45 -36 56 12.5 14.7 V 247
2021-06-28 09:53:05 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:53:37 V 18 43 40.40 -36 56 14.8 14.6 V 247
2021-06-28 09:53:37 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:54:08 V 18 43 40.33 -36 56 16.9 14.6 V 247
2021-06-28 09:54:08 v 1 201.91295 +21.37121 – – 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)