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 17:41:21 V 18 42 56.88 -37 27 52.1 14.4 V 247
2021-06-28 17:41:21 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:25 V 18 42 56.86 -37 27 52.5 14.4 V 247
2021-06-28 17:41:25 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:29 V 18 42 56.85 -37 27 52.6 14.5 V 247
2021-06-28 17:41:29 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:33 V 18 42 56.83 -37 27 52.9 14.5 V 247
2021-06-28 17:41:33 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:37 V 18 42 56.83 -37 27 53.1 14.5 V 247
2021-06-28 17:41:37 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:41 V 18 42 56.81 -37 27 53.2 14.4 V 247
2021-06-28 17:41:41 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:45 V 18 42 56.79 -37 27 53.4 14.5 V 247
2021-06-28 17:41:45 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:49 V 18 42 56.79 -37 27 53.7 14.4 V 247
2021-06-28 17:41:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:53 V 18 42 56.77 -37 27 54.0 14.5 V 247
2021-06-28 17:41:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:41:56 V 18 42 56.76 -37 27 54.3 14.4 V 247
2021-06-28 17:41:56 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:00 V 18 42 56.77 -37 27 54.7 14.4 V 247
2021-06-28 17:42:00 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:04 V 18 42 56.77 -37 27 55.2 14.4 V 247
2021-06-28 17:42:04 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:08 V 18 42 56.76 -37 27 55.5 14.3 V 247
2021-06-28 17:42:08 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:12 V 18 42 56.77 -37 27 56.0 14.4 V 247
2021-06-28 17:42:12 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:16 V 18 42 56.76 -37 27 56.4 14.4 V 247
2021-06-28 17:42:16 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:20 V 18 42 56.75 -37 27 56.7 14.5 V 247
2021-06-28 17:42:20 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:24 V 18 42 56.76 -37 27 56.7 14.5 V 247
2021-06-28 17:42:24 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:28 V 18 42 56.77 -37 27 56.9 14.5 V 247
2021-06-28 17:42:28 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:32 V 18 42 56.76 -37 27 57.1 14.5 V 247
2021-06-28 17:42:32 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:36 V 18 42 56.74 -37 27 57.5 14.6 V 247
2021-06-28 17:42:36 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:40 V 18 42 56.74 -37 27 57.6 14.5 V 247
2021-06-28 17:42:40 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:44 V 18 42 56.73 -37 27 57.7 14.5 V 247
2021-06-28 17:42:44 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:48 V 18 42 56.72 -37 27 58.2 14.5 V 247
2021-06-28 17:42:48 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:52 V 18 42 56.71 -37 27 58.5 14.4 V 247
2021-06-28 17:42:52 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:42:56 V 18 42 56.70 -37 27 58.7 14.4 V 247
2021-06-28 17:42:56 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)