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
2021-06-20 17:05:43 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:06:15 V 19 08 55.28 -13 09 24.5 13.2 V 247
2021-06-20 17:06:15 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:06:47 V 19 08 55.14 -13 09 31.0 13.4 V 247
2021-06-20 17:06:47 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:07:18 V 19 08 54.97 -13 09 39.2 13.4 V 247
2021-06-20 17:07:18 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:07:50 V 19 08 54.89 -13 09 45.0 13.4 V 247
2021-06-20 17:07:50 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:08:22 V 19 08 54.77 -13 09 52.6 13.7 V 247
2021-06-20 17:08:22 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:08:54 V 19 08 54.71 -13 09 59.1 13.5 V 247
2021-06-20 17:08:54 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:09:25 V 19 08 54.55 -13 10 05.5 13.4 V 247
2021-06-20 17:09:25 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:10:01 V 19 08 54.50 -13 10 11.9 13.4 V 247
2021-06-20 17:10:01 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:10:37 V 19 08 54.34 -13 10 21.4 13.2 V 247
2021-06-20 17:10:37 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:11:09 V 19 08 54.21 -13 10 26.4 13.2 V 247
2021-06-20 17:11:09 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:11:41 V 19 08 54.05 -13 10 33.7 13.5 V 247
2021-06-20 17:11:41 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:12:12 V 19 08 53.98 -13 10 41.9 13.3 V 247
2021-06-20 17:12:12 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:12:44 V 19 08 53.83 -13 10 48.6 13.5 V 247
2021-06-20 17:12:44 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:13:16 V 19 08 53.75 -13 10 54.1 13.4 V 247
2021-06-20 17:13:16 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:13:48 V 19 08 53.64 -13 11 01.0 13.4 V 247
2021-06-20 17:13:48 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:14:19 V 19 08 53.50 -13 11 08.4 13.4 V 247
2021-06-20 17:14:19 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:14:51 V 19 08 53.41 -13 11 15.9 13.3 V 247
2021-06-20 17:14:51 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:15:23 V 19 08 53.29 -13 11 21.2 13.3 V 247
2021-06-20 17:15:23 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:15:55 V 19 08 53.18 -13 11 28.2 13.3 V 247
2021-06-20 17:15:55 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:16:26 V 19 08 53.09 -13 11 35.0 13.5 V 247
2021-06-20 17:16:26 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:16:58 V 19 08 52.96 -13 11 41.8 13.5 V 247
2021-06-20 17:16:58 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:17:30 V 19 08 52.87 -13 11 49.6 13.4 V 247
2021-06-20 17:17:30 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:18:34 V 19 08 52.59 -13 12 03.2 13.0 V 247
2021-06-20 17:18:34 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:19:05 V 19 08 52.51 -13 12 09.5 13.0 V 247
2021-06-20 17:19:05 v 1 138.70718 +36.35424 – – 247
2021-06-20 17:19:37 V 19 08 52.32 -13 12 17.7 12.9 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)