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 17:44:39 V 18 42 56.46 -37 28 05.8 14.6 V 247
2021-06-28 17:44:39 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:44:43 V 18 42 56.45 -37 28 06.0 14.6 V 247
2021-06-28 17:44:43 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:44:47 V 18 42 56.44 -37 28 06.2 14.6 V 247
2021-06-28 17:44:47 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:44:51 V 18 42 56.44 -37 28 06.7 14.6 V 247
2021-06-28 17:44:51 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:44:55 V 18 42 56.43 -37 28 07.0 14.6 V 247
2021-06-28 17:44:55 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:44:59 V 18 42 56.43 -37 28 07.4 14.6 V 247
2021-06-28 17:44:59 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:03 V 18 42 56.43 -37 28 07.7 14.6 V 247
2021-06-28 17:45:03 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:07 V 18 42 56.42 -37 28 08.1 14.6 V 247
2021-06-28 17:45:07 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:11 V 18 42 56.42 -37 28 08.3 14.6 V 247
2021-06-28 17:45:11 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:15 V 18 42 56.42 -37 28 08.8 14.6 V 247
2021-06-28 17:45:15 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:19 V 18 42 56.40 -37 28 09.0 14.7 V 247
2021-06-28 17:45:19 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:23 V 18 42 56.40 -37 28 09.4 14.7 V 247
2021-06-28 17:45:23 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:27 V 18 42 56.39 -37 28 09.5 14.7 V 247
2021-06-28 17:45:27 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:31 V 18 42 56.37 -37 28 09.8 14.7 V 247
2021-06-28 17:45:31 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:35 V 18 42 56.36 -37 28 10.0 14.8 V 247
2021-06-28 17:45:35 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:39 V 18 42 56.36 -37 28 10.2 14.7 V 247
2021-06-28 17:45:39 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:43 V 18 42 56.36 -37 28 10.4 14.7 V 247
2021-06-28 17:45:43 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:47 V 18 42 56.34 -37 28 10.7 14.7 V 247
2021-06-28 17:45:47 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:51 V 18 42 56.34 -37 28 11.1 14.7 V 247
2021-06-28 17:45:51 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:55 V 18 42 56.33 -37 28 11.2 14.7 V 247
2021-06-28 17:45:55 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:45:59 V 18 42 56.32 -37 28 11.6 14.7 V 247
2021-06-28 17:45:59 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:46:03 V 18 42 56.32 -37 28 11.9 14.7 V 247
2021-06-28 17:46:03 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:46:07 V 18 42 56.31 -37 28 12.2 14.7 V 247
2021-06-28 17:46:07 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:46:11 V 18 42 56.30 -37 28 12.4 14.6 V 247
2021-06-28 17:46:11 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:46:15 V 18 42 56.28 -37 28 12.7 14.7 V 247
2021-06-28 17:46:15 v 1 055.57625 -21.19295 – – 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)