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 16:50:55 V 18 43 02.64 -37 24 18.5 14.8 V 247
2021-06-28 16:50:55 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:50:59 V 18 43 02.63 -37 24 18.9 14.7 V 247
2021-06-28 16:50:59 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:02 V 18 43 02.62 -37 24 19.3 14.7 V 247
2021-06-28 16:51:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:06 V 18 43 02.61 -37 24 19.8 14.8 V 247
2021-06-28 16:51:06 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:10 V 18 43 02.60 -37 24 20.0 14.8 V 247
2021-06-28 16:51:10 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:14 V 18 43 02.59 -37 24 20.3 14.8 V 247
2021-06-28 16:51:14 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:18 V 18 43 02.62 -37 24 20.5 14.7 V 247
2021-06-28 16:51:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:22 V 18 43 02.63 -37 24 20.8 14.7 V 247
2021-06-28 16:51:22 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:26 V 18 43 02.62 -37 24 21.1 14.8 V 247
2021-06-28 16:51:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:30 V 18 43 02.61 -37 24 21.4 14.8 V 247
2021-06-28 16:51:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:34 V 18 43 02.60 -37 24 21.7 14.9 V 247
2021-06-28 16:51:34 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:38 V 18 43 02.60 -37 24 22.0 14.7 V 247
2021-06-28 16:51:38 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:42 V 18 43 02.58 -37 24 22.2 14.7 V 247
2021-06-28 16:51:42 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:46 V 18 43 02.58 -37 24 22.6 14.7 V 247
2021-06-28 16:51:46 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:50 V 18 43 02.57 -37 24 22.7 14.8 V 247
2021-06-28 16:51:50 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:54 V 18 43 02.56 -37 24 22.7 14.7 V 247
2021-06-28 16:51:54 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:51:58 V 18 43 02.55 -37 24 22.9 14.7 V 247
2021-06-28 16:51:58 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:02 V 18 43 02.56 -37 24 23.3 14.7 V 247
2021-06-28 16:52:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:06 V 18 43 02.56 -37 24 23.7 14.8 V 247
2021-06-28 16:52:06 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:10 V 18 43 02.54 -37 24 23.9 14.9 V 247
2021-06-28 16:52:10 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:14 V 18 43 02.53 -37 24 24.4 14.9 V 247
2021-06-28 16:52:14 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:18 V 18 43 02.52 -37 24 24.8 14.8 V 247
2021-06-28 16:52:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:22 V 18 43 02.50 -37 24 25.0 14.7 V 247
2021-06-28 16:52:22 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:26 V 18 43 02.50 -37 24 25.4 14.8 V 247
2021-06-28 16:52:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:52:30 V 18 43 02.49 -37 24 25.8 14.8 V 247
2021-06-28 16:52:30 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)