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
2021-06-17 02:29:12 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:29:52 V 19 28 22.58 +10 17 14.9 13.9 V 247
2021-06-17 02:29:52 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:30:31 V 19 28 22.39 +10 17 00.9 13.5 V 247
2021-06-17 02:30:31 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:32:30 V 19 28 21.82 +10 16 24.6 14.1 V 247
2021-06-17 02:32:30 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:33:10 V 19 28 21.69 +10 16 12.1 14.4 V 247
2021-06-17 02:33:10 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:33:50 V 19 28 21.47 +10 15 59.0 13.8 V 247
2021-06-17 02:33:50 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:37:48 V 19 28 20.32 +10 14 41.9 14.0 V 247
2021-06-17 02:37:48 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:38:28 V 19 28 20.12 +10 14 28.8 13.8 V 247
2021-06-17 02:38:28 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:39:08 V 19 28 20.01 +10 14 19.1 14.3 V 247
2021-06-17 02:39:08 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:39:47 V 19 28 19.84 +10 14 06.1 13.7 V 247
2021-06-17 02:39:47 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:46:37 V 19 28 17.83 +10 11 54.1 15.8 V 247
2021-06-17 02:46:37 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:49:16 V 19 28 17.12 +10 11 02.8 13.7 V 247
2021-06-17 02:49:16 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:51:55 V 19 28 16.37 +10 10 13.2 13.6 V 247
2021-06-17 02:51:55 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:52:34 V 19 28 16.16 +10 10 00.4 13.8 V 247
2021-06-17 02:52:34 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:53:14 V 19 28 15.96 +10 09 48.3 13.9 V 247
2021-06-17 02:53:14 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:53:54 V 19 28 15.79 +10 09 33.4 13.9 V 247
2021-06-17 02:53:54 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:55:13 V 19 28 15.47 +10 09 11.0 13.7 V 247
2021-06-17 02:55:13 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:57:12 V 19 28 14.91 +10 08 31.7 13.6 V 247
2021-06-17 02:57:12 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:57:52 V 19 28 14.72 +10 08 17.5 14.3 V 247
2021-06-17 02:57:52 v 1 276.64254 +33.90568 – – 247
2021-06-17 02:58:32 V 19 28 14.57 +10 08 07.4 13.1 V 247
2021-06-17 02:58:32 v 1 276.64254 +33.90568 – – 247
2021-06-17 03:00:31 V 19 28 13.97 +10 07 28.0 14.3 V 247
2021-06-17 03:00:31 v 1 276.64254 +33.90568 – – 247
2021-06-17 03:01:11 V 19 28 13.77 +10 07 14.7 14.5 V 247
2021-06-17 03:01:11 v 1 276.64254 +33.90568 – – 247
2021-06-17 03:01:50 V 19 28 13.62 +10 07 03.9 13.8 V 247
2021-06-17 03:01:50 v 1 276.64254 +33.90568 – – 247
2021-06-17 03:03:10 V 19 28 13.19 +10 06 35.9 13.8 V 247
2021-06-17 03:03:10 v 1 276.64254 +33.90568 – – 247
2021-06-17 03:04:29 V 19 28 12.87 +10 06 12.4 13.7 V 247
2021-06-17 03:04:29 v 1 276.64254 +33.90568 – – 247
2021-06-17 03:05:09 V 19 28 12.67 +10 06 00.2 13.9 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)