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 19:44:15 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:44:46 V 18 38 22.58 -40 27 23.9 15.3 V 247
2021-06-30 19:44:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:45:18 V 18 38 22.52 -40 27 25.9 15.2 V 247
2021-06-30 19:45:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:45:50 V 18 38 22.48 -40 27 27.2 15.3 V 247
2021-06-30 19:45:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:46:22 V 18 38 22.45 -40 27 29.4 15.5 V 247
2021-06-30 19:46:22 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:46:53 V 18 38 22.36 -40 27 31.1 15.2 V 247
2021-06-30 19:46:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:47:25 V 18 38 22.32 -40 27 32.3 15.7 V 247
2021-06-30 19:47:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:47:57 V 18 38 22.27 -40 27 34.2 15.5 V 247
2021-06-30 19:47:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:48:29 V 18 38 22.22 -40 27 36.0 16.1 V 247
2021-06-30 19:48:29 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:49:01 V 18 38 22.13 -40 27 37.4 15.9 V 247
2021-06-30 19:49:01 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:49:32 V 18 38 22.03 -40 27 39.9 15.4 V 247
2021-06-30 19:49:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:50:04 V 18 38 22.04 -40 27 40.9 15.3 V 247
2021-06-30 19:50:04 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:50:36 V 18 38 21.98 -40 27 42.3 15.4 V 247
2021-06-30 19:50:36 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:51:08 V 18 38 21.92 -40 27 44.2 15.7 V 247
2021-06-30 19:51:08 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:51:39 V 18 38 21.82 -40 27 45.9 15.5 V 247
2021-06-30 19:51:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:52:11 V 18 38 21.81 -40 27 47.6 15.4 V 247
2021-06-30 19:52:11 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:52:43 V 18 38 21.74 -40 27 49.3 15.6 V 247
2021-06-30 19:52:43 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:53:15 V 18 38 21.69 -40 27 51.5 15.1 V 247
2021-06-30 19:53:15 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:53:46 V 18 38 21.64 -40 27 52.7 15.2 V 247
2021-06-30 19:53:46 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:54:18 V 18 38 21.60 -40 27 54.7 15.2 V 247
2021-06-30 19:54:18 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:54:50 V 18 38 21.52 -40 27 57.0 15.0 V 247
2021-06-30 19:54:50 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:55:22 V 18 38 21.45 -40 27 58.4 15.1 V 247
2021-06-30 19:55:22 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:55:54 V 18 38 21.41 -40 27 59.8 15.0 V 247
2021-06-30 19:55:54 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:56:25 V 18 38 21.37 -40 28 02.1 14.9 V 247
2021-06-30 19:56:25 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:56:57 V 18 38 21.31 -40 28 03.0 15.1 V 247
2021-06-30 19:56:57 v 1 055.57620 -21.19285 – – 247
2021-06-30 19:57:29 V 18 38 21.27 -40 28 04.2 15.1 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)