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 19:21:52 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:22:23 V 18 38 25.02 -40 26 13.1 14.8 V 247
2021-06-30 19:22:23 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:22:55 V 18 38 24.97 -40 26 14.9 14.7 V 247
2021-06-30 19:22:55 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:23:27 V 18 38 24.88 -40 26 16.7 14.8 V 247
2021-06-30 19:23:27 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:23:59 V 18 38 24.87 -40 26 18.6 14.8 V 247
2021-06-30 19:23:59 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:24:31 V 18 38 24.80 -40 26 20.2 14.8 V 247
2021-06-30 19:24:31 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:25:02 V 18 38 24.72 -40 26 21.6 15.0 V 247
2021-06-30 19:25:02 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:25:34 V 18 38 24.65 -40 26 23.1 15.0 V 247
2021-06-30 19:25:34 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:26:06 V 18 38 24.62 -40 26 25.0 15.1 V 247
2021-06-30 19:26:06 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:26:38 V 18 38 24.59 -40 26 26.7 15.2 V 247
2021-06-30 19:26:38 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:27:09 V 18 38 24.51 -40 26 28.7 15.2 V 247
2021-06-30 19:27:09 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:27:41 V 18 38 24.45 -40 26 30.2 15.2 V 247
2021-06-30 19:27:41 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:28:13 V 18 38 24.39 -40 26 32.0 15.1 V 247
2021-06-30 19:28:13 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:37:53 V 18 38 23.32 -40 27 02.4 15.3 V 247
2021-06-30 19:37:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:38:25 V 18 38 23.30 -40 27 04.0 15.4 V 247
2021-06-30 19:38:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:38:57 V 18 38 23.21 -40 27 05.4 15.2 V 247
2021-06-30 19:38:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:39:29 V 18 38 23.14 -40 27 07.8 15.2 V 247
2021-06-30 19:39:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:40:00 V 18 38 23.10 -40 27 09.1 15.4 V 247
2021-06-30 19:40:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:40:32 V 18 38 23.08 -40 27 11.0 15.2 V 247
2021-06-30 19:40:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:41:04 V 18 38 23.01 -40 27 12.3 15.2 V 247
2021-06-30 19:41:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:41:36 V 18 38 22.93 -40 27 13.7 15.2 V 247
2021-06-30 19:41:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:42:08 V 18 38 22.88 -40 27 15.8 15.1 V 247
2021-06-30 19:42:08 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:42:39 V 18 38 22.86 -40 27 17.3 15.1 V 247
2021-06-30 19:42:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:43:11 V 18 38 22.79 -40 27 18.8 15.4 V 247
2021-06-30 19:43:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:43:43 V 18 38 22.74 -40 27 20.6 15.4 V 247
2021-06-30 19:43:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:44:15 V 18 38 22.65 -40 27 22.4 15.2 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)