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
2021-06-30 18:55:23 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:55:55 V 18 38 27.77 -40 24 48.7 15.9 V 247
2021-06-30 18:55:55 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:56:27 V 18 38 27.76 -40 24 50.2 15.7 V 247
2021-06-30 18:56:27 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:56:59 V 18 38 27.69 -40 24 51.7 15.6 V 247
2021-06-30 18:56:59 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:57:30 V 18 38 27.63 -40 24 53.2 15.5 V 247
2021-06-30 18:57:30 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:58:02 V 18 38 27.55 -40 24 55.0 15.4 V 247
2021-06-30 18:58:02 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:58:34 V 18 38 27.58 -40 24 57.1 15.7 V 247
2021-06-30 18:58:34 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:59:06 V 18 38 27.53 -40 24 58.5 15.4 V 247
2021-06-30 18:59:06 v 1 055.57620 -21.19285 – – 247
2021-06-30 18:59:37 V 18 38 27.41 -40 25 00.6 15.3 V 247
2021-06-30 18:59:37 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:00:09 V 18 38 27.37 -40 25 02.1 15.4 V 247
2021-06-30 19:00:09 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:00:41 V 18 38 27.34 -40 25 03.7 15.6 V 247
2021-06-30 19:00:41 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:01:13 V 18 38 27.26 -40 25 05.4 15.5 V 247
2021-06-30 19:01:13 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:01:45 V 18 38 27.18 -40 25 07.2 15.4 V 247
2021-06-30 19:01:45 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:02:16 V 18 38 27.14 -40 25 08.5 15.7 V 247
2021-06-30 19:02:16 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:02:48 V 18 38 27.09 -40 25 10.7 15.6 V 247
2021-06-30 19:02:48 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:03:20 V 18 38 27.02 -40 25 11.8 15.6 V 247
2021-06-30 19:03:20 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:03:52 V 18 38 27.00 -40 25 13.9 15.5 V 247
2021-06-30 19:03:52 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:04:23 V 18 38 26.91 -40 25 15.9 15.4 V 247
2021-06-30 19:04:23 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:04:55 V 18 38 26.86 -40 25 17.0 15.5 V 247
2021-06-30 19:04:55 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:05:27 V 18 38 26.75 -40 25 19.2 15.6 V 247
2021-06-30 19:05:27 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:05:59 V 18 38 26.74 -40 25 20.5 15.4 V 247
2021-06-30 19:05:59 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:06:30 V 18 38 26.69 -40 25 22.7 15.4 V 247
2021-06-30 19:06:30 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:07:02 V 18 38 26.59 -40 25 24.2 15.5 V 247
2021-06-30 19:07:02 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:07:34 V 18 38 26.54 -40 25 25.5 15.2 V 247
2021-06-30 19:07:34 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:08:06 V 18 38 26.53 -40 25 27.2 15.2 V 247
2021-06-30 19:08:06 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:08:37 V 18 38 26.46 -40 25 29.4 15.3 V 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)