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
2021-06-20 18:28:31 v 1 138.70718 +36.35424 – – 247
2021-06-20 18:29:34 V 19 08 37.44 -13 27 08.1 13.5 V 247
2021-06-20 18:29:34 v 1 138.70718 +36.35424 – – 247
2021-06-20 18:32:23 V 19 08 36.77 -13 27 44.4 13.3 V 247
2021-06-20 18:32:23 v 1 138.70718 +36.35424 – – 247
2021-06-20 18:33:29 V 19 08 36.71 -13 28 00.3 13.3 V 247
2021-06-20 18:33:29 v 1 138.70718 +36.35424 – – 247
2021-06-20 18:34:01 V 19 08 36.55 -13 28 04.5 13.5 V 247
2021-06-20 18:34:01 v 1 138.70718 +36.35424 – – 247
2021-06-20 18:34:36 V 19 08 36.28 -13 28 14.5 13.5 V 247
2021-06-20 18:34:36 v 1 138.70718 +36.35424 – – 247
2021-06-20 18:39:22 V 19 08 35.44 -13 29 14.8 14.1 V 247
2021-06-20 18:39:22 v 1 138.70718 +36.35424 – – 247
2021-06-21 10:28:55 C 19 05 51.84 -16 41 34.4 – V T05
2021-06-21 10:33:32 C 19 05 50.87 -16 42 28.2 – V T05
2021-06-21 11:00:49 C 19 05 45.16 -16 47 44.9 – V T05
2021-06-21 11:04:46 C 19 05 44.33 -16 48 30.7 – V T05
2021-06-21 15:32:26 V 19 04 57.58 -17 39 45.4 13.5 V 247
2021-06-21 15:32:26 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:33:06 V 19 04 57.42 -17 39 53.4 13.4 V 247
2021-06-21 15:33:06 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:33:45 V 19 04 57.30 -17 40 00.1 13.2 V 247
2021-06-21 15:33:45 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:34:25 V 19 04 57.18 -17 40 08.0 13.3 V 247
2021-06-21 15:34:25 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:35:05 V 19 04 57.05 -17 40 14.7 12.9 V 247
2021-06-21 15:35:05 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:35:44 V 19 04 56.90 -17 40 22.6 13.0 V 247
2021-06-21 15:35:44 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:36:24 V 19 04 56.76 -17 40 30.4 13.2 V 247
2021-06-21 15:36:24 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:37:04 V 19 04 56.64 -17 40 37.3 13.8 V 247
2021-06-21 15:37:04 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:37:44 V 19 04 56.49 -17 40 45.2 13.6 V 247
2021-06-21 15:37:44 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:38:23 V 19 04 56.35 -17 40 52.3 13.3 V 247
2021-06-21 15:38:23 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:39:03 V 19 04 56.23 -17 41 00.2 12.8 V 247
2021-06-21 15:39:03 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:39:43 V 19 04 56.12 -17 41 06.9 13.0 V 247
2021-06-21 15:39:43 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:40:23 V 19 04 55.99 -17 41 14.8 13.1 V 247
2021-06-21 15:40:23 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:41:02 V 19 04 55.83 -17 41 22.1 13.4 V 247
2021-06-21 15:41:02 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:41:42 V 19 04 55.69 -17 41 29.6 13.4 V 247
2021-06-21 15:41:42 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:42:22 V 19 04 55.56 -17 41 36.7 13.7 V 247
2021-06-21 15:42:22 v 1 140.16761 +36.07639 – – 247
2021-06-21 15:43:01 V 19 04 55.43 -17 41 44.2 13.8 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)