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 18:36:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:36:57 V 18 38 29.87 -40 23 55.4 13.3 V 247
2021-06-30 18:36:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:37:29 V 18 38 29.87 -40 23 55.2 13.3 V 247
2021-06-30 18:37:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:38:01 V 18 38 29.86 -40 23 55.0 13.3 V 247
2021-06-30 18:38:01 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:38:32 V 18 38 29.85 -40 23 55.2 13.3 V 247
2021-06-30 18:38:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:39:04 V 18 38 29.84 -40 23 55.3 13.2 V 247
2021-06-30 18:39:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:39:36 V 18 38 29.83 -40 23 55.5 13.3 V 247
2021-06-30 18:39:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:40:08 V 18 38 29.82 -40 23 55.7 13.2 V 247
2021-06-30 18:40:08 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:40:39 V 18 38 29.82 -40 23 55.8 13.3 V 247
2021-06-30 18:40:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:41:11 V 18 38 29.35 -40 24 00.4 13.3 V 247
2021-06-30 18:41:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:41:43 V 18 38 29.89 -40 23 55.6 13.3 V 247
2021-06-30 18:41:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:42:15 V 18 38 28.80 -40 24 06.8 14.2 V 247
2021-06-30 18:42:15 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:42:46 V 18 38 28.92 -40 24 07.0 14.4 V 247
2021-06-30 18:42:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:46:10 V 18 38 28.53 -40 24 26.7 15.9 V 247
2021-06-30 18:46:10 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:49:34 V 18 38 28.43 -40 24 27.7 15.4 V 247
2021-06-30 18:49:34 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:50:06 V 18 38 28.41 -40 24 29.7 15.7 V 247
2021-06-30 18:50:06 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:50:37 V 18 38 28.34 -40 24 30.7 15.1 V 247
2021-06-30 18:50:37 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:51:09 V 18 38 28.28 -40 24 33.2 15.4 V 247
2021-06-30 18:51:09 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:51:41 V 18 38 28.28 -40 24 34.5 15.7 V 247
2021-06-30 18:51:41 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:52:13 V 18 38 28.29 -40 24 36.3 15.5 V 247
2021-06-30 18:52:13 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:52:44 V 18 38 28.14 -40 24 38.6 15.5 V 247
2021-06-30 18:52:44 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:53:16 V 18 38 28.12 -40 24 39.8 15.5 V 247
2021-06-30 18:53:16 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:53:48 V 18 38 28.02 -40 24 41.4 15.4 V 247
2021-06-30 18:53:48 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:54:20 V 18 38 27.98 -40 24 43.3 15.5 V 247
2021-06-30 18:54:20 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:54:52 V 18 38 27.97 -40 24 45.0 15.4 V 247
2021-06-30 18:54:52 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:55:23 V 18 38 27.87 -40 24 46.8 15.7 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)