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 17:21:49 V 18 42 59.20 -37 26 29.7 13.8 V 247
2021-06-28 17:21:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:21:53 V 18 42 59.19 -37 26 30.0 13.9 V 247
2021-06-28 17:21:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:21:57 V 18 42 59.19 -37 26 30.2 13.9 V 247
2021-06-28 17:21:57 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:01 V 18 42 59.18 -37 26 30.4 13.9 V 247
2021-06-28 17:22:01 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:05 V 18 42 59.17 -37 26 30.7 13.9 V 247
2021-06-28 17:22:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:09 V 18 42 59.17 -37 26 30.9 14.0 V 247
2021-06-28 17:22:09 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:13 V 18 42 59.17 -37 26 31.2 14.0 V 247
2021-06-28 17:22:13 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:17 V 18 42 59.16 -37 26 31.5 14.1 V 247
2021-06-28 17:22:17 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:21 V 18 42 59.16 -37 26 31.8 14.0 V 247
2021-06-28 17:22:21 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:25 V 18 42 59.15 -37 26 32.1 14.0 V 247
2021-06-28 17:22:25 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:29 V 18 42 59.15 -37 26 32.5 14.0 V 247
2021-06-28 17:22:29 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:33 V 18 42 59.14 -37 26 32.8 14.0 V 247
2021-06-28 17:22:33 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:37 V 18 42 59.13 -37 26 33.0 14.1 V 247
2021-06-28 17:22:37 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:41 V 18 42 59.12 -37 26 33.3 14.1 V 247
2021-06-28 17:22:41 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:45 V 18 42 59.10 -37 26 33.7 14.1 V 247
2021-06-28 17:22:45 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:49 V 18 42 59.09 -37 26 33.9 14.1 V 247
2021-06-28 17:22:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:53 V 18 42 59.08 -37 26 34.3 14.1 V 247
2021-06-28 17:22:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:22:57 V 18 42 59.05 -37 26 34.4 14.1 V 247
2021-06-28 17:22:57 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:01 V 18 42 59.05 -37 26 34.7 14.2 V 247
2021-06-28 17:23:01 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:05 V 18 42 59.07 -37 26 35.0 14.1 V 247
2021-06-28 17:23:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:09 V 18 42 59.05 -37 26 35.1 14.1 V 247
2021-06-28 17:23:09 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:13 V 18 42 59.04 -37 26 35.3 14.1 V 247
2021-06-28 17:23:13 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:17 V 18 42 59.05 -37 26 35.6 14.1 V 247
2021-06-28 17:23:17 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:21 V 18 42 59.04 -37 26 35.7 14.1 V 247
2021-06-28 17:23:21 v 1 055.57625 -21.19295 – – 247
2021-06-28 17:23:25 V 18 42 59.04 -37 26 35.9 14.2 V 247
2021-06-28 17:23:25 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)