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
2021-06-28 18:03:29 V 18 42 54.27 -37 29 24.6 15.5 V 247
2021-06-28 18:03:29 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:33 V 18 42 54.26 -37 29 24.9 15.5 V 247
2021-06-28 18:03:33 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:37 V 18 42 54.25 -37 29 24.9 15.5 V 247
2021-06-28 18:03:37 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:41 V 18 42 54.23 -37 29 25.1 15.4 V 247
2021-06-28 18:03:41 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:45 V 18 42 54.23 -37 29 25.8 15.4 V 247
2021-06-28 18:03:45 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:49 V 18 42 54.22 -37 29 25.9 15.5 V 247
2021-06-28 18:03:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:53 V 18 42 54.21 -37 29 26.4 15.5 V 247
2021-06-28 18:03:53 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:03:57 V 18 42 54.20 -37 29 26.6 15.6 V 247
2021-06-28 18:03:57 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:01 V 18 42 54.20 -37 29 27.0 15.9 V 247
2021-06-28 18:04:01 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:05 V 18 42 54.19 -37 29 27.3 16.5 V 247
2021-06-28 18:04:05 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:25 V 18 42 54.16 -37 29 28.7 15.9 V 247
2021-06-28 18:04:25 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:29 V 18 42 54.16 -37 29 29.2 15.0 V 247
2021-06-28 18:04:29 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:33 V 18 42 54.14 -37 29 29.4 14.6 V 247
2021-06-28 18:04:33 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:37 V 18 42 54.14 -37 29 29.7 14.3 V 247
2021-06-28 18:04:37 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:41 V 18 42 54.14 -37 29 30.1 14.1 V 247
2021-06-28 18:04:41 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:45 V 18 42 54.13 -37 29 30.5 13.9 V 247
2021-06-28 18:04:45 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:49 V 18 42 54.11 -37 29 30.7 13.8 V 247
2021-06-28 18:04:49 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:52 V 18 42 54.10 -37 29 31.0 13.7 V 247
2021-06-28 18:04:52 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:04:56 V 18 42 54.09 -37 29 31.2 13.8 V 247
2021-06-28 18:04:56 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:05:00 V 18 42 54.08 -37 29 31.5 13.9 V 247
2021-06-28 18:05:00 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:05:04 V 18 42 54.07 -37 29 31.8 14.2 V 247
2021-06-28 18:05:04 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:05:08 V 18 42 54.07 -37 29 32.0 14.3 V 247
2021-06-28 18:05:08 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:05:12 V 18 42 54.06 -37 29 32.3 14.6 V 247
2021-06-28 18:05:12 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:05:16 V 18 42 54.06 -37 29 32.5 15.2 V 247
2021-06-28 18:05:16 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:05:20 V 18 42 54.07 -37 29 32.6 16.1 V 247
2021-06-28 18:05:20 v 1 055.57625 -21.19295 – – 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)