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
2021-06-21 16:49:56 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:50:36 V 19 04 41.86 -17 54 18.8 14.1 V 247
2021-06-21 16:50:36 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:51:15 V 19 04 41.73 -17 54 26.5 13.5 V 247
2021-06-21 16:51:15 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:51:55 V 19 04 41.60 -17 54 33.8 13.3 V 247
2021-06-21 16:51:55 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:52:35 V 19 04 41.46 -17 54 41.2 13.3 V 247
2021-06-21 16:52:35 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:53:15 V 19 04 41.34 -17 54 48.5 13.3 V 247
2021-06-21 16:53:15 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:53:54 V 19 04 41.22 -17 54 55.3 13.3 V 247
2021-06-21 16:53:54 v 1 140.16761 +36.07639 – – 247
2021-06-21 16:54:34 V 19 04 41.10 -17 55 03.0 13.3 V 247
2021-06-21 16:54:34 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:00:46 V 19 04 39.85 -17 56 12.4 14.0 V 247
2021-06-21 17:00:46 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:01:25 V 19 04 39.71 -17 56 19.9 13.5 V 247
2021-06-21 17:01:25 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:02:05 V 19 04 39.57 -17 56 27.5 13.6 V 247
2021-06-21 17:02:05 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:02:45 V 19 04 39.45 -17 56 34.8 13.4 V 247
2021-06-21 17:02:45 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:03:24 V 19 04 39.33 -17 56 41.8 13.3 V 247
2021-06-21 17:03:24 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:04:04 V 19 04 39.20 -17 56 49.1 13.3 V 247
2021-06-21 17:04:04 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:04:44 V 19 04 39.05 -17 56 56.7 13.2 V 247
2021-06-21 17:04:44 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:05:24 V 19 04 38.91 -17 57 03.7 13.5 V 247
2021-06-21 17:05:24 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:06:03 V 19 04 38.79 -17 57 11.0 13.5 V 247
2021-06-21 17:06:03 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:06:43 V 19 04 38.66 -17 57 18.4 13.3 V 247
2021-06-21 17:06:43 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:07:23 V 19 04 38.53 -17 57 25.9 13.2 V 247
2021-06-21 17:07:23 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:08:02 V 19 04 38.43 -17 57 32.4 13.3 V 247
2021-06-21 17:08:02 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:08:42 V 19 04 38.28 -17 57 40.9 13.3 V 247
2021-06-21 17:08:42 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:09:22 V 19 04 38.14 -17 57 47.7 13.4 V 247
2021-06-21 17:09:22 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:10:02 V 19 04 38.00 -17 57 55.1 13.2 V 247
2021-06-21 17:10:02 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:10:41 V 19 04 37.89 -17 58 03.1 13.1 V 247
2021-06-21 17:10:41 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:11:21 V 19 04 37.77 -17 58 08.7 13.1 V 247
2021-06-21 17:11:21 v 1 140.16761 +36.07639 – – 247
2021-06-21 17:12:01 V 19 04 37.61 -17 58 16.7 13.2 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)