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 16:27:45 V 18 43 05.25 -37 22 39.9 14.3 V 247
2021-06-28 16:27:45 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:27:49 V 18 43 05.25 -37 22 40.1 14.4 V 247
2021-06-28 16:27:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:27:53 V 18 43 05.23 -37 22 40.2 14.4 V 247
2021-06-28 16:27:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:27:57 V 18 43 05.22 -37 22 40.6 14.4 V 247
2021-06-28 16:27:57 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:01 V 18 43 05.21 -37 22 41.1 14.4 V 247
2021-06-28 16:28:01 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:05 V 18 43 05.21 -37 22 41.3 14.4 V 247
2021-06-28 16:28:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:08 V 18 43 05.22 -37 22 41.3 14.4 V 247
2021-06-28 16:28:08 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:12 V 18 43 05.22 -37 22 41.5 14.4 V 247
2021-06-28 16:28:12 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:16 V 18 43 05.20 -37 22 41.6 14.3 V 247
2021-06-28 16:28:16 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:20 V 18 43 05.19 -37 22 42.2 14.3 V 247
2021-06-28 16:28:20 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:24 V 18 43 05.21 -37 22 42.6 14.4 V 247
2021-06-28 16:28:24 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:28 V 18 43 05.17 -37 22 43.0 14.4 V 247
2021-06-28 16:28:28 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:32 V 18 43 05.15 -37 22 43.2 14.3 V 247
2021-06-28 16:28:32 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:36 V 18 43 05.15 -37 22 43.8 14.3 V 247
2021-06-28 16:28:36 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:40 V 18 43 05.15 -37 22 44.4 14.3 V 247
2021-06-28 16:28:40 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:44 V 18 43 05.14 -37 22 44.7 14.2 V 247
2021-06-28 16:28:44 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:48 V 18 43 05.14 -37 22 44.7 14.3 V 247
2021-06-28 16:28:48 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:52 V 18 43 05.12 -37 22 45.0 14.2 V 247
2021-06-28 16:28:52 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:28:56 V 18 43 05.09 -37 22 45.1 14.2 V 247
2021-06-28 16:28:56 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:29:00 V 18 43 05.10 -37 22 45.1 14.2 V 247
2021-06-28 16:29:00 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:29:04 V 18 43 05.10 -37 22 45.4 14.2 V 247
2021-06-28 16:29:04 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:29:08 V 18 43 05.09 -37 22 45.5 14.2 V 247
2021-06-28 16:29:08 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:29:12 V 18 43 05.09 -37 22 45.5 14.2 V 247
2021-06-28 16:29:12 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:29:16 V 18 43 05.08 -37 22 45.7 14.2 V 247
2021-06-28 16:29:16 v 1 055.57625 -21.19295 – – 247
2021-06-28 16:29:20 V 18 43 05.07 -37 22 45.9 14.2 V 247
2021-06-28 16:29:20 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)