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 19:57:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:58:01 V 18 38 21.23 -40 28 05.1 14.9 V 247
2021-06-30 19:58:01 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:58:32 V 18 38 21.13 -40 28 07.1 15.0 V 247
2021-06-30 19:58:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:59:04 V 18 38 21.09 -40 28 08.6 15.0 V 247
2021-06-30 19:59:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:59:36 V 18 38 21.02 -40 28 10.6 15.0 V 247
2021-06-30 19:59:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:00:08 V 18 38 20.95 -40 28 12.2 15.2 V 247
2021-06-30 20:00:08 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:00:39 V 18 38 20.90 -40 28 14.3 15.2 V 247
2021-06-30 20:00:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:01:11 V 18 38 20.73 -40 28 16.1 15.2 V 247
2021-06-30 20:01:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:01:43 V 18 38 20.74 -40 28 17.8 15.1 V 247
2021-06-30 20:01:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:02:15 V 18 38 20.69 -40 28 18.8 15.3 V 247
2021-06-30 20:02:15 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:02:47 V 18 38 20.64 -40 28 20.7 15.4 V 247
2021-06-30 20:02:47 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:03:18 V 18 38 20.58 -40 28 21.8 15.5 V 247
2021-06-30 20:03:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:03:50 V 18 38 20.54 -40 28 24.4 15.3 V 247
2021-06-30 20:03:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:04:22 V 18 38 20.50 -40 28 26.4 15.5 V 247
2021-06-30 20:04:22 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:04:54 V 18 38 20.45 -40 28 27.6 15.5 V 247
2021-06-30 20:04:54 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:05:25 V 18 38 20.35 -40 28 29.1 15.6 V 247
2021-06-30 20:05:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:05:57 V 18 38 20.28 -40 28 30.5 15.2 V 247
2021-06-30 20:05:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:06:29 V 18 38 20.24 -40 28 33.0 15.6 V 247
2021-06-30 20:06:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:07:01 V 18 38 20.19 -40 28 33.9 15.5 V 247
2021-06-30 20:07:01 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:07:32 V 18 38 20.16 -40 28 36.0 15.4 V 247
2021-06-30 20:07:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:08:04 V 18 38 20.09 -40 28 37.1 15.4 V 247
2021-06-30 20:08:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:08:36 V 18 38 20.04 -40 28 39.1 15.5 V 247
2021-06-30 20:08:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:09:08 V 18 38 19.98 -40 28 40.6 15.6 V 247
2021-06-30 20:09:08 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:09:40 V 18 38 19.92 -40 28 42.8 15.3 V 247
2021-06-30 20:09:40 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:10:11 V 18 38 19.86 -40 28 43.7 15.4 V 247
2021-06-30 20:10:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 20:10:43 V 18 38 19.83 -40 28 45.5 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)