IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-08-04 13:03:59 S 20 46 11.738 +28 19 42.96 – V C57
2021-08-04 13:03:59 s 1 -202710.63 7 +115883.23 7340.0 – C57
2021-08-04 13:04:13 V 20 44 48.59 +28 57 20.6 15.5 V 247
2021-08-04 13:04:13 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:05:12 V 20 44 48.68 +28 57 25.0 16.1 V 247
2021-08-04 13:05:12 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:06:12 V 20 44 48.76 +28 57 29.1 16.1 V 247
2021-08-04 13:06:12 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:07:11 V 20 44 48.85 +28 57 34.2 15.7 V 247
2021-08-04 13:07:11 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:08:11 V 20 44 48.94 +28 57 37.5 15.6 V 247
2021-08-04 13:08:11 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:09:03 V 20 44 55.63 +28 57 26.9 14.4 V 247
2021-08-04 13:09:03 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:09:11 V 20 44 49.02 +28 57 42.0 15.0 V 247
2021-08-04 13:09:11 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:10:10 V 20 44 49.15 +28 57 46.3 14.8 V 247
2021-08-04 13:10:10 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:11:10 V 20 44 49.22 +28 57 50.1 14.7 V 247
2021-08-04 13:11:10 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:12:09 V 20 44 49.29 +28 57 54.8 14.7 V 247
2021-08-04 13:12:09 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:13:01 V 20 44 55.94 +28 57 44.6 15.1 V 247
2021-08-04 13:13:01 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:13:09 V 20 44 49.43 +28 57 59.3 14.7 V 247
2021-08-04 13:13:09 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:14:01 V 20 44 56.02 +28 57 49.2 15.1 V 247
2021-08-04 13:14:01 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:14:08 V 20 44 49.52 +28 58 03.2 14.7 V 247
2021-08-04 13:14:08 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:15:01 V 20 44 56.14 +28 57 53.4 15.1 V 247
2021-08-04 13:15:01 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:15:08 V 20 44 49.59 +28 58 07.4 15.0 V 247
2021-08-04 13:15:08 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:16:00 V 20 44 56.23 +28 57 58.3 15.2 V 247
2021-08-04 13:16:00 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:16:07 V 20 44 49.70 +28 58 11.7 15.2 V 247
2021-08-04 13:16:07 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:17:00 V 20 44 56.29 +28 58 02.2 15.4 V 247
2021-08-04 13:17:00 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:17:07 V 20 44 49.79 +28 58 16.5 15.3 V 247
2021-08-04 13:17:07 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:17:59 V 20 44 56.42 +28 58 07.1 15.3 V 247
2021-08-04 13:17:59 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:18:59 V 20 44 56.49 +28 58 11.2 15.2 V 247
2021-08-04 13:18:59 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:23:59 S 20 46 14.887 +28 21 21.53 – V C57
2021-08-04 13:23:59 s 1 -202512.59 3 +114342.17 7870.0 – C57
2021-08-04 13:25:04 V 20 44 50.52 +28 58 50.1 14.9 V 247
2021-08-04 13:25:04 v 1 201.91294 +21.37124 – – 247
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)