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
2021-06-21 17:12:01 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:12:40 V 19 04 37.49 -17 58 24.7 13.9 V 247
2021-06-21 17:12:40 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:13:20 V 19 04 37.33 -17 58 31.9 13.6 V 247
2021-06-21 17:13:20 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:14:00 V 19 04 37.20 -17 58 38.7 13.4 V 247
2021-06-21 17:14:00 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:14:40 V 19 04 37.10 -17 58 46.1 13.1 V 247
2021-06-21 17:14:40 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:15:19 V 19 04 36.96 -17 58 53.5 13.2 V 247
2021-06-21 17:15:19 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:15:59 V 19 04 36.82 -17 59 00.9 13.5 V 247
2021-06-21 17:15:59 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:16:39 V 19 04 36.69 -17 59 07.9 13.7 V 247
2021-06-21 17:16:39 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:17:18 V 19 04 36.54 -17 59 16.0 13.5 V 247
2021-06-21 17:17:18 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:17:58 V 19 04 36.42 -17 59 23.3 13.4 V 247
2021-06-21 17:17:58 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:18:38 V 19 04 36.29 -17 59 30.2 13.5 V 247
2021-06-21 17:18:38 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:19:17 V 19 04 36.16 -17 59 37.6 13.2 V 247
2021-06-21 17:19:17 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:19:57 V 19 04 36.04 -17 59 44.7 13.2 V 247
2021-06-21 17:19:57 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:20:37 V 19 04 35.86 -17 59 53.2 13.2 V 247
2021-06-21 17:20:37 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:21:17 V 19 04 35.76 -17 59 58.5 13.2 V 247
2021-06-21 17:21:17 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:21:56 V 19 04 35.64 -18 00 06.8 12.9 V 247
2021-06-21 17:21:56 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:22:36 V 19 04 35.53 -18 00 14.2 13.0 V 247
2021-06-21 17:22:36 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:23:16 V 19 04 35.38 -18 00 21.8 13.1 V 247
2021-06-21 17:23:16 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:23:55 V 19 04 35.25 -18 00 29.3 13.4 V 247
2021-06-21 17:23:55 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:24:35 V 19 04 35.13 -18 00 36.4 13.5 V 247
2021-06-21 17:24:35 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:25:15 V 19 04 34.99 -18 00 43.4 13.5 V 247
2021-06-21 17:25:15 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:25:55 V 19 04 34.86 -18 00 50.9 13.6 V 247
2021-06-21 17:25:55 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:26:34 V 19 04 34.74 -18 00 58.1 13.5 V 247
2021-06-21 17:26:34 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:27:14 V 19 04 34.60 -18 01 05.2 13.7 V 247
2021-06-21 17:27:14 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:27:54 V 19 04 34.46 -18 01 12.5 13.8 V 247
2021-06-21 17:27:54 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:28:33 V 19 04 34.35 -18 01 19.7 13.3 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)