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 18:07:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:07:50 V 18 38 32.83 -40 22 12.9 16.0 V 247
2021-06-30 18:07:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:08:21 V 18 38 32.87 -40 22 14.3 15.6 V 247
2021-06-30 18:08:21 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:08:53 V 18 38 32.73 -40 22 16.9 15.7 V 247
2021-06-30 18:08:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:09:25 V 18 38 32.75 -40 22 18.0 15.4 V 247
2021-06-30 18:09:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:09:57 V 18 38 32.60 -40 22 20.0 15.4 V 247
2021-06-30 18:09:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:10:28 V 18 38 32.58 -40 22 21.5 16.0 V 247
2021-06-30 18:10:28 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:11:00 V 18 38 32.51 -40 22 23.0 15.5 V 247
2021-06-30 18:11:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:11:32 V 18 38 32.46 -40 22 24.8 15.2 V 247
2021-06-30 18:11:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:12:04 V 18 38 32.40 -40 22 27.4 15.6 V 247
2021-06-30 18:12:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:12:36 V 18 38 32.28 -40 22 28.4 15.3 V 247
2021-06-30 18:12:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:13:07 V 18 38 32.29 -40 22 30.2 15.5 V 247
2021-06-30 18:13:07 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:13:39 V 18 38 32.22 -40 22 31.9 15.4 V 247
2021-06-30 18:13:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:14:11 V 18 38 32.20 -40 22 33.5 15.5 V 247
2021-06-30 18:14:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:14:43 V 18 38 32.13 -40 22 35.2 15.3 V 247
2021-06-30 18:14:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:15:14 V 18 38 32.10 -40 22 37.6 15.1 V 247
2021-06-30 18:15:14 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:15:46 V 18 38 32.03 -40 22 38.5 15.3 V 247
2021-06-30 18:15:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:16:18 V 18 38 31.97 -40 22 40.7 15.2 V 247
2021-06-30 18:16:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:16:50 V 18 38 31.91 -40 22 42.4 15.3 V 247
2021-06-30 18:16:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:17:22 V 18 38 31.87 -40 22 43.9 15.3 V 247
2021-06-30 18:17:22 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:17:53 V 18 38 31.79 -40 22 46.1 15.4 V 247
2021-06-30 18:17:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:18:25 V 18 38 31.76 -40 22 47.2 15.4 V 247
2021-06-30 18:18:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:18:57 V 18 38 31.68 -40 22 48.5 15.3 V 247
2021-06-30 18:18:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:19:29 V 18 38 31.66 -40 22 50.4 15.3 V 247
2021-06-30 18:19:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:20:00 V 18 38 31.58 -40 22 52.0 15.2 V 247
2021-06-30 18:20:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:20:32 V 18 38 31.49 -40 22 54.6 15.1 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)