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 11:19:40 V 18 43 29.59 -37 02 20.5 16.0 V 247
2021-06-28 11:19:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:20:12 V 18 43 29.56 -37 02 22.3 14.9 V 247
2021-06-28 11:20:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:20:44 V 18 43 29.46 -37 02 24.7 16.3 V 247
2021-06-28 11:20:44 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:21:15 V 18 43 29.42 -37 02 27.0 15.5 V 247
2021-06-28 11:21:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:21:47 V 18 43 29.33 -37 02 29.1 15.5 V 247
2021-06-28 11:21:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:22:19 V 18 43 29.26 -37 02 31.7 16.1 V 247
2021-06-28 11:22:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:22:51 V 18 43 29.19 -37 02 33.9 15.3 V 247
2021-06-28 11:22:51 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:23:23 V 18 43 29.11 -37 02 35.9 14.9 V 247
2021-06-28 11:23:23 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:23:54 V 18 43 29.07 -37 02 38.0 15.0 V 247
2021-06-28 11:23:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:24:26 V 18 43 29.00 -37 02 40.3 15.1 V 247
2021-06-28 11:24:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:24:58 V 18 43 28.93 -37 02 42.4 14.6 V 247
2021-06-28 11:24:58 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:25:30 V 18 43 28.85 -37 02 44.9 14.4 V 247
2021-06-28 11:25:30 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:26:01 V 18 43 28.83 -37 02 47.0 14.4 V 247
2021-06-28 11:26:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:26:33 V 18 43 28.74 -37 02 49.1 14.2 V 247
2021-06-28 11:26:33 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:27:05 V 18 43 28.67 -37 02 51.9 14.1 V 247
2021-06-28 11:27:05 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:27:37 V 18 43 28.61 -37 02 53.7 14.2 V 247
2021-06-28 11:27:37 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:28:08 V 18 43 28.55 -37 02 56.1 14.3 V 247
2021-06-28 11:28:08 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:28:40 V 18 43 28.50 -37 02 58.2 14.3 V 247
2021-06-28 11:28:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:29:12 V 18 43 28.42 -37 03 00.2 14.1 V 247
2021-06-28 11:29:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:29:44 V 18 43 28.36 -37 03 02.1 14.2 V 247
2021-06-28 11:29:44 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:30:16 V 18 43 28.28 -37 03 04.6 14.3 V 247
2021-06-28 11:30:16 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:30:47 V 18 43 28.21 -37 03 06.7 14.2 V 247
2021-06-28 11:30:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:31:19 V 18 43 28.13 -37 03 09.3 14.7 V 247
2021-06-28 11:31:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:31:51 V 18 43 28.07 -37 03 11.2 15.2 V 247
2021-06-28 11:31:51 v 1 201.91295 +21.37121 – – 247
2021-06-28 11:35:57 V 18 43 27.59 -37 03 29.2 15.2 V 247
2021-06-28 11:35:57 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)