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
2021-06-28 17:18:31 V 18 42 59.58 -37 26 16.0 13.9 V 247
2021-06-28 17:18:31 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:35 V 18 42 59.57 -37 26 16.4 13.9 V 247
2021-06-28 17:18:35 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:39 V 18 42 59.57 -37 26 16.5 13.9 V 247
2021-06-28 17:18:39 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:43 V 18 42 59.56 -37 26 16.8 13.9 V 247
2021-06-28 17:18:43 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:47 V 18 42 59.55 -37 26 17.3 13.9 V 247
2021-06-28 17:18:47 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:51 V 18 42 59.56 -37 26 17.6 13.9 V 247
2021-06-28 17:18:51 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:55 V 18 42 59.56 -37 26 18.2 13.8 V 247
2021-06-28 17:18:55 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:18:58 V 18 42 59.55 -37 26 18.2 13.8 V 247
2021-06-28 17:18:58 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:02 V 18 42 59.55 -37 26 18.6 13.8 V 247
2021-06-28 17:19:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:06 V 18 42 59.54 -37 26 18.8 13.8 V 247
2021-06-28 17:19:06 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:10 V 18 42 59.53 -37 26 19.1 13.8 V 247
2021-06-28 17:19:10 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:14 V 18 42 59.53 -37 26 19.3 13.8 V 247
2021-06-28 17:19:14 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:18 V 18 42 59.52 -37 26 19.7 13.8 V 247
2021-06-28 17:19:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:22 V 18 42 59.53 -37 26 19.9 13.8 V 247
2021-06-28 17:19:22 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:26 V 18 42 59.51 -37 26 20.3 13.8 V 247
2021-06-28 17:19:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:30 V 18 42 59.51 -37 26 20.5 13.7 V 247
2021-06-28 17:19:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:34 V 18 42 59.52 -37 26 20.8 13.7 V 247
2021-06-28 17:19:34 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:38 V 18 42 59.51 -37 26 21.0 13.7 V 247
2021-06-28 17:19:38 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:42 V 18 42 59.51 -37 26 21.2 13.7 V 247
2021-06-28 17:19:42 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:46 V 18 42 59.49 -37 26 21.4 13.7 V 247
2021-06-28 17:19:46 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:50 V 18 42 59.49 -37 26 21.7 13.7 V 247
2021-06-28 17:19:50 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:54 V 18 42 59.45 -37 26 21.9 13.7 V 247
2021-06-28 17:19:54 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:19:58 V 18 42 59.45 -37 26 22.2 13.7 V 247
2021-06-28 17:19:58 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:20:02 V 18 42 59.45 -37 26 22.5 13.7 V 247
2021-06-28 17:20:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:20:06 V 18 42 59.44 -37 26 22.7 13.7 V 247
2021-06-28 17:20:06 v 1 055.57625 -21.19295 – – 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)