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 17:02:30 V 18 43 01.45 -37 25 07.1 14.5 V 247
2021-06-28 17:02:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:34 V 18 43 01.44 -37 25 07.5 14.5 V 247
2021-06-28 17:02:34 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:37 V 18 43 01.44 -37 25 07.9 14.5 V 247
2021-06-28 17:02:37 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:41 V 18 43 01.42 -37 25 08.0 14.4 V 247
2021-06-28 17:02:41 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:45 V 18 43 01.40 -37 25 08.3 14.4 V 247
2021-06-28 17:02:45 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:49 V 18 43 01.38 -37 25 08.6 14.4 V 247
2021-06-28 17:02:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:53 V 18 43 01.38 -37 25 08.8 14.3 V 247
2021-06-28 17:02:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:02:57 V 18 43 01.38 -37 25 09.0 14.4 V 247
2021-06-28 17:02:57 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:01 V 18 43 01.35 -37 25 09.2 14.4 V 247
2021-06-28 17:03:01 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:05 V 18 43 01.33 -37 25 09.7 14.3 V 247
2021-06-28 17:03:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:09 V 18 43 01.32 -37 25 09.9 14.3 V 247
2021-06-28 17:03:09 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:13 V 18 43 01.31 -37 25 10.5 14.2 V 247
2021-06-28 17:03:13 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:17 V 18 43 01.30 -37 25 10.7 14.2 V 247
2021-06-28 17:03:17 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:21 V 18 43 01.28 -37 25 10.9 14.1 V 247
2021-06-28 17:03:21 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:25 V 18 43 01.29 -37 25 11.3 14.2 V 247
2021-06-28 17:03:25 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:29 V 18 43 01.27 -37 25 11.5 14.1 V 247
2021-06-28 17:03:29 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:33 V 18 43 01.26 -37 25 11.6 14.1 V 247
2021-06-28 17:03:33 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:37 V 18 43 01.25 -37 25 11.9 14.1 V 247
2021-06-28 17:03:37 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:03:41 V 18 43 01.27 -37 25 12.5 14.2 V 247
2021-06-28 17:03:41 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:13:05 V 18 43 00.20 -37 25 52.7 14.7 V 247
2021-06-28 17:13:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:13:09 V 18 43 00.19 -37 25 53.0 14.7 V 247
2021-06-28 17:13:09 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:13:13 V 18 43 00.20 -37 25 53.2 14.8 V 247
2021-06-28 17:13:13 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:13:17 V 18 43 00.21 -37 25 53.4 14.8 V 247
2021-06-28 17:13:17 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:13:21 V 18 43 00.20 -37 25 53.7 14.8 V 247
2021-06-28 17:13:21 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:13:25 V 18 43 00.19 -37 25 54.0 14.9 V 247
2021-06-28 17:13:25 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)