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 10:29:19 V 18 43 35.90 -36 58 47.9 14.4 V 247
2021-06-28 10:29:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:29:50 V 18 43 35.85 -36 58 49.9 14.7 V 247
2021-06-28 10:29:50 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:30:22 V 18 43 35.80 -36 58 52.2 14.8 V 247
2021-06-28 10:30:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:30:54 V 18 43 35.71 -36 58 54.3 14.4 V 247
2021-06-28 10:30:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:31:26 V 18 43 35.66 -36 58 56.7 14.6 V 247
2021-06-28 10:31:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:31:57 V 18 43 35.59 -36 58 59.2 14.8 V 247
2021-06-28 10:31:57 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:32:29 V 18 43 35.52 -36 59 01.4 15.0 V 247
2021-06-28 10:32:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:33:01 V 18 43 35.44 -36 59 03.6 14.5 V 247
2021-06-28 10:33:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:33:33 V 18 43 35.39 -36 59 05.7 14.7 V 247
2021-06-28 10:33:33 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:34:05 V 18 43 35.31 -36 59 07.8 14.7 V 247
2021-06-28 10:34:05 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:34:36 V 18 43 35.23 -36 59 10.0 14.6 V 247
2021-06-28 10:34:36 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:35:08 V 18 43 35.18 -36 59 12.4 14.6 V 247
2021-06-28 10:35:08 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:35:40 V 18 43 35.11 -36 59 14.7 15.1 V 247
2021-06-28 10:35:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:36:12 V 18 43 35.05 -36 59 16.9 14.8 V 247
2021-06-28 10:36:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:36:43 V 18 43 35.01 -36 59 19.1 14.5 V 247
2021-06-28 10:36:43 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:37:15 V 18 43 34.92 -36 59 21.3 14.6 V 247
2021-06-28 10:37:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:37:47 V 18 43 34.86 -36 59 23.5 14.5 V 247
2021-06-28 10:37:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:38:19 V 18 43 34.77 -36 59 25.7 14.4 V 247
2021-06-28 10:38:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:38:50 V 18 43 34.71 -36 59 28.3 14.4 V 247
2021-06-28 10:38:50 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:39:22 V 18 43 34.65 -36 59 30.3 14.4 V 247
2021-06-28 10:39:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:39:54 V 18 43 34.58 -36 59 32.3 14.4 V 247
2021-06-28 10:39:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:40:26 V 18 43 34.51 -36 59 35.0 14.6 V 247
2021-06-28 10:40:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:40:58 V 18 43 34.42 -36 59 37.9 15.1 V 247
2021-06-28 10:40:58 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:41:29 V 18 43 34.34 -36 59 40.1 14.9 V 247
2021-06-28 10:41:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:42:01 V 18 43 34.29 -36 59 41.9 14.7 V 247
2021-06-28 10:42:01 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)