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
2021-06-16 23:07:25 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:07:56 V 19 29 10.98 +11 22 01.6 13.3 V 247
2021-06-16 23:07:56 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:08:28 V 19 29 10.80 +11 21 52.3 13.2 V 247
2021-06-16 23:08:28 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:09:00 V 19 29 10.61 +11 21 44.0 13.6 V 247
2021-06-16 23:09:00 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:09:32 V 19 29 10.49 +11 21 31.8 14.0 V 247
2021-06-16 23:09:32 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:10:35 V 19 29 10.18 +11 21 10.2 13.9 V 247
2021-06-16 23:10:35 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:11:07 V 19 29 09.99 +11 21 01.6 13.9 V 247
2021-06-16 23:11:07 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:11:39 V 19 29 09.92 +11 20 51.4 14.0 V 247
2021-06-16 23:11:39 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:12:11 V 19 29 09.74 +11 20 41.5 13.7 V 247
2021-06-16 23:12:11 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:12:42 V 19 29 09.59 +11 20 30.5 13.8 V 247
2021-06-16 23:12:42 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:13:14 V 19 29 09.42 +11 20 22.2 14.0 V 247
2021-06-16 23:13:14 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:13:46 V 19 29 09.23 +11 20 10.6 14.6 V 247
2021-06-16 23:13:46 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:14:18 V 19 29 09.06 +11 20 00.6 15.2 V 247
2021-06-16 23:14:18 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:15:21 V 19 29 08.77 +11 19 41.1 13.9 V 247
2021-06-16 23:15:21 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:15:53 V 19 29 08.55 +11 19 28.2 14.6 V 247
2021-06-16 23:15:53 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:16:25 V 19 29 08.47 +11 19 20.3 14.6 V 247
2021-06-16 23:16:25 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:17:28 V 19 29 08.15 +11 18 58.6 14.4 V 247
2021-06-16 23:17:28 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:18:00 V 19 29 07.98 +11 18 48.6 13.9 V 247
2021-06-16 23:18:00 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:18:32 V 19 29 07.84 +11 18 38.5 13.9 V 247
2021-06-16 23:18:32 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:19:35 V 19 29 07.51 +11 18 17.8 13.4 V 247
2021-06-16 23:19:35 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:20:07 V 19 29 07.38 +11 18 06.7 13.6 V 247
2021-06-16 23:20:07 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:20:39 V 19 29 07.17 +11 17 56.7 14.0 V 247
2021-06-16 23:20:39 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:21:11 V 19 29 07.03 +11 17 46.8 13.8 V 247
2021-06-16 23:21:11 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:21:42 V 19 29 06.92 +11 17 36.2 13.6 V 247
2021-06-16 23:21:42 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:22:46 V 19 29 06.61 +11 17 16.1 14.2 V 247
2021-06-16 23:22:46 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:23:18 V 19 29 06.43 +11 17 05.6 14.0 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)