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 16:40:59 V 18 43 03.80 -37 23 35.8 14.5 V 247
2021-06-28 16:40:59 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:03 V 18 43 03.79 -37 23 36.1 14.5 V 247
2021-06-28 16:41:03 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:07 V 18 43 03.78 -37 23 36.4 14.6 V 247
2021-06-28 16:41:07 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:11 V 18 43 03.77 -37 23 36.5 14.5 V 247
2021-06-28 16:41:11 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:15 V 18 43 03.78 -37 23 36.9 14.6 V 247
2021-06-28 16:41:15 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:19 V 18 43 03.78 -37 23 37.2 14.6 V 247
2021-06-28 16:41:19 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:23 V 18 43 03.78 -37 23 37.5 14.5 V 247
2021-06-28 16:41:23 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:27 V 18 43 03.78 -37 23 37.8 14.6 V 247
2021-06-28 16:41:27 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:31 V 18 43 03.76 -37 23 38.2 14.7 V 247
2021-06-28 16:41:31 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:35 V 18 43 03.76 -37 23 38.5 14.7 V 247
2021-06-28 16:41:35 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:39 V 18 43 03.76 -37 23 38.6 14.7 V 247
2021-06-28 16:41:39 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:43 V 18 43 03.74 -37 23 38.8 14.7 V 247
2021-06-28 16:41:43 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:47 V 18 43 03.73 -37 23 39.1 14.7 V 247
2021-06-28 16:41:47 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:50 V 18 43 03.70 -37 23 39.3 14.7 V 247
2021-06-28 16:41:50 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:54 V 18 43 03.69 -37 23 39.7 14.7 V 247
2021-06-28 16:41:54 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:41:58 V 18 43 03.68 -37 23 40.0 14.6 V 247
2021-06-28 16:41:58 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:02 V 18 43 03.69 -37 23 40.4 14.6 V 247
2021-06-28 16:42:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:06 V 18 43 03.68 -37 23 40.8 14.6 V 247
2021-06-28 16:42:06 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:10 V 18 43 03.66 -37 23 41.0 14.6 V 247
2021-06-28 16:42:10 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:14 V 18 43 03.68 -37 23 41.3 14.7 V 247
2021-06-28 16:42:14 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:18 V 18 43 03.65 -37 23 41.6 14.7 V 247
2021-06-28 16:42:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:22 V 18 43 03.66 -37 23 41.9 14.8 V 247
2021-06-28 16:42:22 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:26 V 18 43 03.64 -37 23 42.0 14.7 V 247
2021-06-28 16:42:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:30 V 18 43 03.64 -37 23 42.3 14.8 V 247
2021-06-28 16:42:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:42:34 V 18 43 03.64 -37 23 42.4 14.9 V 247
2021-06-28 16:42:34 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)