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 17:46:28 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:47:00 V 18 38 35.14 -40 21 05.0 16.7 V 247
2021-06-30 17:47:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:47:32 V 18 38 35.04 -40 21 06.0 16.3 V 247
2021-06-30 17:47:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:48:04 V 18 38 34.94 -40 21 07.7 16.6 V 247
2021-06-30 17:48:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:48:35 V 18 38 34.91 -40 21 10.0 15.5 V 247
2021-06-30 17:48:35 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:49:07 V 18 38 34.83 -40 21 12.3 15.8 V 247
2021-06-30 17:49:07 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:49:39 V 18 38 34.75 -40 21 13.2 15.6 V 247
2021-06-30 17:49:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:50:11 V 18 38 35.08 -40 21 13.3 14.0 V 247
2021-06-30 17:50:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:50:42 V 18 38 34.61 -40 21 16.5 15.3 V 247
2021-06-30 17:50:42 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:51:14 V 18 38 33.48 -40 21 22.7 14.8 V 247
2021-06-30 17:51:14 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:51:46 V 18 38 34.74 -40 21 17.7 17.1 V 247
2021-06-30 17:51:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:52:18 V 18 38 34.24 -40 20 47.8 12.6 V 247
2021-06-30 17:52:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:53:27 V 18 38 31.75 -40 20 59.5 11.9 V 247
2021-06-30 17:53:27 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:54:05 V 18 38 31.59 -40 21 38.9 12.7 V 247
2021-06-30 17:54:05 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:54:37 V 18 38 34.25 -40 21 29.9 14.9 V 247
2021-06-30 17:54:37 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:55:08 V 18 38 34.24 -40 21 31.0 15.2 V 247
2021-06-30 17:55:08 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:55:40 V 18 38 34.12 -40 21 33.4 15.7 V 247
2021-06-30 17:55:40 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:56:12 V 18 38 34.06 -40 21 36.1 15.4 V 247
2021-06-30 17:56:12 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:03:36 V 18 38 33.34 -40 21 58.8 14.5 V 247
2021-06-30 18:03:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:04:07 V 18 38 33.30 -40 22 00.6 14.9 V 247
2021-06-30 18:04:07 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:04:39 V 18 38 33.20 -40 22 02.4 15.3 V 247
2021-06-30 18:04:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:05:11 V 18 38 33.17 -40 22 04.2 14.9 V 247
2021-06-30 18:05:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:05:43 V 18 38 33.14 -40 22 06.2 15.0 V 247
2021-06-30 18:05:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:06:14 V 18 38 33.08 -40 22 07.7 15.0 V 247
2021-06-30 18:06:14 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:06:46 V 18 38 32.98 -40 22 09.3 15.6 V 247
2021-06-30 18:06:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:07:18 V 18 38 32.90 -40 22 11.0 15.6 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)