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
2021-06-30 18:20:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:21:04 V 18 38 31.44 -40 22 55.9 15.3 V 247
2021-06-30 18:21:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:21:36 V 18 38 31.44 -40 22 57.6 15.5 V 247
2021-06-30 18:21:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:22:07 V 18 38 31.34 -40 22 59.7 15.1 V 247
2021-06-30 18:22:07 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:22:39 V 18 38 31.27 -40 23 01.2 15.3 V 247
2021-06-30 18:22:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:23:11 V 18 38 31.27 -40 23 02.6 15.4 V 247
2021-06-30 18:23:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:23:43 V 18 38 31.24 -40 23 04.7 15.4 V 247
2021-06-30 18:23:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:24:15 V 18 38 31.17 -40 23 05.9 15.6 V 247
2021-06-30 18:24:15 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:24:46 V 18 38 31.09 -40 23 08.5 15.6 V 247
2021-06-30 18:24:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:25:18 V 18 38 31.05 -40 23 09.7 15.5 V 247
2021-06-30 18:25:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:25:50 V 18 38 31.01 -40 23 11.5 15.8 V 247
2021-06-30 18:25:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:26:22 V 18 38 30.94 -40 23 13.3 15.4 V 247
2021-06-30 18:26:22 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:26:53 V 18 38 30.91 -40 23 15.2 15.5 V 247
2021-06-30 18:26:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:27:25 V 18 38 30.83 -40 23 16.7 16.0 V 247
2021-06-30 18:27:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:27:57 V 18 38 30.75 -40 23 18.2 15.8 V 247
2021-06-30 18:27:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:28:29 V 18 38 30.72 -40 23 20.1 15.8 V 247
2021-06-30 18:28:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:29:00 V 18 38 30.66 -40 23 21.4 15.7 V 247
2021-06-30 18:29:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:29:32 V 18 38 30.60 -40 23 23.7 16.2 V 247
2021-06-30 18:29:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:30:04 V 18 38 30.57 -40 23 25.0 17.1 V 247
2021-06-30 18:30:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:33:15 V 18 38 30.22 -40 23 35.3 15.9 V 247
2021-06-30 18:33:15 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:33:46 V 18 38 30.15 -40 23 37.6 15.0 V 247
2021-06-30 18:33:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:34:18 V 18 38 30.08 -40 23 38.9 14.8 V 247
2021-06-30 18:34:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:34:50 V 18 38 30.08 -40 23 41.3 14.3 V 247
2021-06-30 18:34:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:35:22 V 18 38 29.96 -40 23 42.8 13.9 V 247
2021-06-30 18:35:22 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:35:53 V 18 38 29.96 -40 23 44.9 13.6 V 247
2021-06-30 18:35:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:36:25 V 18 38 29.90 -40 23 44.2 13.8 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)