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 10:16:04 V 18 43 37.59 -36 57 51.4 14.8 V 247
2021-06-28 10:16:04 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:16:36 V 18 43 37.52 -36 57 53.2 14.9 V 247
2021-06-28 10:16:36 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:17:08 V 18 43 37.43 -36 57 55.6 15.0 V 247
2021-06-28 10:17:08 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:17:40 V 18 43 37.39 -36 57 57.6 14.6 V 247
2021-06-28 10:17:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:18:11 V 18 43 37.31 -36 58 00.0 15.6 V 247
2021-06-28 10:18:11 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:18:43 V 18 43 37.25 -36 58 02.4 14.8 V 247
2021-06-28 10:18:43 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:19:15 V 18 43 37.17 -36 58 04.6 14.9 V 247
2021-06-28 10:19:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:19:47 V 18 43 37.11 -36 58 07.1 15.0 V 247
2021-06-28 10:19:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:20:19 V 18 43 37.05 -36 58 09.3 14.5 V 247
2021-06-28 10:20:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:20:50 V 18 43 36.98 -36 58 11.6 14.5 V 247
2021-06-28 10:20:50 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:21:22 V 18 43 36.90 -36 58 13.5 14.8 V 247
2021-06-28 10:21:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:21:54 V 18 43 36.82 -36 58 15.9 14.9 V 247
2021-06-28 10:21:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:22:26 V 18 43 36.79 -36 58 18.4 14.5 V 247
2021-06-28 10:22:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:22:57 V 18 43 36.72 -36 58 20.5 14.8 V 247
2021-06-28 10:22:57 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:23:29 V 18 43 36.64 -36 58 22.7 14.7 V 247
2021-06-28 10:23:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:24:01 V 18 43 36.60 -36 58 24.8 14.7 V 247
2021-06-28 10:24:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:24:33 V 18 43 36.53 -36 58 27.3 14.7 V 247
2021-06-28 10:24:33 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:25:04 V 18 43 36.45 -36 58 29.3 14.5 V 247
2021-06-28 10:25:04 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:25:36 V 18 43 36.40 -36 58 31.8 14.7 V 247
2021-06-28 10:25:36 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:26:08 V 18 43 36.33 -36 58 34.0 14.8 V 247
2021-06-28 10:26:08 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:26:40 V 18 43 36.25 -36 58 36.4 14.9 V 247
2021-06-28 10:26:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:27:12 V 18 43 36.17 -36 58 38.4 14.5 V 247
2021-06-28 10:27:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:27:43 V 18 43 36.10 -36 58 40.6 14.7 V 247
2021-06-28 10:27:43 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:28:15 V 18 43 36.05 -36 58 43.0 14.6 V 247
2021-06-28 10:28:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:28:47 V 18 43 35.97 -36 58 45.5 14.5 V 247
2021-06-28 10:28:47 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)