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 18:01:18 V 18 42 54.59 -37 29 15.8 15.3 V 247
2021-06-28 18:01:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:22 V 18 42 54.57 -37 29 16.0 15.2 V 247
2021-06-28 18:01:22 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:26 V 18 42 54.55 -37 29 16.3 15.2 V 247
2021-06-28 18:01:26 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:30 V 18 42 54.54 -37 29 16.7 15.1 V 247
2021-06-28 18:01:30 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:34 V 18 42 54.52 -37 29 17.0 15.0 V 247
2021-06-28 18:01:34 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:38 V 18 42 54.51 -37 29 17.3 15.0 V 247
2021-06-28 18:01:38 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:42 V 18 42 54.51 -37 29 17.5 15.0 V 247
2021-06-28 18:01:42 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:46 V 18 42 54.49 -37 29 17.8 15.1 V 247
2021-06-28 18:01:46 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:50 V 18 42 54.49 -37 29 18.0 15.2 V 247
2021-06-28 18:01:50 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:54 V 18 42 54.48 -37 29 18.3 15.3 V 247
2021-06-28 18:01:54 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:01:58 V 18 42 54.48 -37 29 18.4 15.5 V 247
2021-06-28 18:01:58 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:02 V 18 42 54.47 -37 29 18.6 15.6 V 247
2021-06-28 18:02:02 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:06 V 18 42 54.47 -37 29 18.9 15.7 V 247
2021-06-28 18:02:06 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:10 V 18 42 54.46 -37 29 19.1 15.8 V 247
2021-06-28 18:02:10 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:14 V 18 42 54.46 -37 29 19.5 15.9 V 247
2021-06-28 18:02:14 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:18 V 18 42 54.46 -37 29 19.8 16.4 V 247
2021-06-28 18:02:18 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:53 V 18 42 54.33 -37 29 22.4 16.4 V 247
2021-06-28 18:02:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:02:57 V 18 42 54.33 -37 29 22.6 16.2 V 247
2021-06-28 18:02:57 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:01 V 18 42 54.33 -37 29 22.9 15.9 V 247
2021-06-28 18:03:01 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:05 V 18 42 54.33 -37 29 23.2 15.8 V 247
2021-06-28 18:03:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:09 V 18 42 54.32 -37 29 23.5 15.8 V 247
2021-06-28 18:03:09 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:13 V 18 42 54.29 -37 29 23.7 15.9 V 247
2021-06-28 18:03:13 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:17 V 18 42 54.29 -37 29 24.1 15.8 V 247
2021-06-28 18:03:17 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:21 V 18 42 54.28 -37 29 24.3 15.6 V 247
2021-06-28 18:03:21 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:25 V 18 42 54.28 -37 29 24.4 15.5 V 247
2021-06-28 18:03:25 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)