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 17:37:23 V 18 42 57.38 -37 27 35.2 14.5 V 247
2021-06-28 17:37:23 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:26 V 18 42 57.36 -37 27 35.7 14.5 V 247
2021-06-28 17:37:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:30 V 18 42 57.36 -37 27 36.0 14.5 V 247
2021-06-28 17:37:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:34 V 18 42 57.36 -37 27 36.2 14.6 V 247
2021-06-28 17:37:34 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:38 V 18 42 57.36 -37 27 36.6 14.6 V 247
2021-06-28 17:37:38 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:42 V 18 42 57.36 -37 27 37.0 14.6 V 247
2021-06-28 17:37:42 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:46 V 18 42 57.36 -37 27 37.2 14.5 V 247
2021-06-28 17:37:46 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:50 V 18 42 57.36 -37 27 37.5 14.5 V 247
2021-06-28 17:37:50 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:54 V 18 42 57.34 -37 27 37.8 14.4 V 247
2021-06-28 17:37:54 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:37:58 V 18 42 57.33 -37 27 38.0 14.4 V 247
2021-06-28 17:37:58 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:02 V 18 42 57.32 -37 27 38.5 14.4 V 247
2021-06-28 17:38:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:06 V 18 42 57.31 -37 27 38.8 14.4 V 247
2021-06-28 17:38:06 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:10 V 18 42 57.30 -37 27 38.9 14.4 V 247
2021-06-28 17:38:10 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:14 V 18 42 57.29 -37 27 39.2 14.4 V 247
2021-06-28 17:38:14 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:18 V 18 42 57.29 -37 27 39.5 14.4 V 247
2021-06-28 17:38:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:22 V 18 42 57.27 -37 27 39.7 14.4 V 247
2021-06-28 17:38:22 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:26 V 18 42 57.26 -37 27 39.8 14.5 V 247
2021-06-28 17:38:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:30 V 18 42 57.25 -37 27 40.1 14.5 V 247
2021-06-28 17:38:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:34 V 18 42 57.22 -37 27 40.2 14.6 V 247
2021-06-28 17:38:34 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:38 V 18 42 57.21 -37 27 40.4 14.6 V 247
2021-06-28 17:38:38 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:42 V 18 42 57.22 -37 27 40.7 14.5 V 247
2021-06-28 17:38:42 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:46 V 18 42 57.21 -37 27 41.0 14.6 V 247
2021-06-28 17:38:46 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:50 V 18 42 57.20 -37 27 41.4 14.5 V 247
2021-06-28 17:38:50 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:54 V 18 42 57.19 -37 27 41.7 14.5 V 247
2021-06-28 17:38:54 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:38:58 V 18 42 57.19 -37 27 42.1 14.4 V 247
2021-06-28 17:38:58 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)