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 17:23:42 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:24:14 V 18 38 37.39 -40 19 50.1 15.4 V 247
2021-06-30 17:24:14 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:24:46 V 18 38 37.29 -40 19 52.2 15.4 V 247
2021-06-30 17:24:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:25:17 V 18 38 37.30 -40 19 53.5 15.5 V 247
2021-06-30 17:25:17 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:25:49 V 18 38 37.27 -40 19 55.8 16.1 V 247
2021-06-30 17:25:49 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:26:21 V 18 38 37.14 -40 19 56.7 15.6 V 247
2021-06-30 17:26:21 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:26:53 V 18 38 37.09 -40 19 58.8 15.6 V 247
2021-06-30 17:26:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:27:25 V 18 38 37.05 -40 20 00.6 17.1 V 247
2021-06-30 17:27:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:27:56 V 18 38 36.97 -40 20 02.1 17.8 V 247
2021-06-30 17:27:56 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:32:11 V 18 38 36.55 -40 20 17.0 18.0 V 247
2021-06-30 17:32:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:32:42 V 18 38 36.44 -40 20 19.1 17.5 V 247
2021-06-30 17:32:42 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:33:14 V 18 38 36.23 -40 20 27.0 15.9 V 247
2021-06-30 17:33:14 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:33:46 V 18 38 36.26 -40 20 25.4 16.0 V 247
2021-06-30 17:33:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:34:18 V 18 38 36.25 -40 20 26.5 16.4 V 247
2021-06-30 17:34:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:34:49 V 18 38 36.26 -40 20 26.7 15.8 V 247
2021-06-30 17:34:49 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:35:21 V 18 38 36.25 -40 20 27.7 15.4 V 247
2021-06-30 17:35:21 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:35:53 V 18 38 36.21 -40 20 28.3 15.7 V 247
2021-06-30 17:35:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:36:25 V 18 38 36.18 -40 20 28.9 15.8 V 247
2021-06-30 17:36:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:36:56 V 18 38 36.13 -40 20 29.9 15.5 V 247
2021-06-30 17:36:56 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:37:28 V 18 38 36.14 -40 20 29.3 16.1 V 247
2021-06-30 17:37:28 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:38:00 V 18 38 36.14 -40 20 29.4 15.6 V 247
2021-06-30 17:38:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:38:32 V 18 38 36.02 -40 20 34.8 15.8 V 247
2021-06-30 17:38:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:39:04 V 18 38 35.84 -40 20 38.2 19.8 V 247
2021-06-30 17:39:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:45:25 V 18 38 35.23 -40 20 59.8 17.0 V 247
2021-06-30 17:45:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:45:56 V 18 38 35.09 -40 21 01.5 16.3 V 247
2021-06-30 17:45:56 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:46:28 V 18 38 35.12 -40 21 03.8 16.0 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)