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
2021-07-21 15:44:38 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:45:18 V 19 53 12.17 -15 00 30.7 13.0 V 247
2021-07-21 15:45:18 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:46:37 V 19 53 12.40 -15 00 16.7 13.3 V 247
2021-07-21 15:46:37 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:47:17 V 19 53 12.50 -15 00 09.9 13.0 V 247
2021-07-21 15:47:17 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:47:56 V 19 53 12.62 -15 00 02.5 13.0 V 247
2021-07-21 15:47:56 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:48:36 V 19 53 12.72 -14 59 55.7 13.0 V 247
2021-07-21 15:48:36 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:49:16 V 19 53 12.84 -14 59 48.8 13.1 V 247
2021-07-21 15:49:16 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:49:56 V 19 53 12.95 -14 59 41.7 13.0 V 247
2021-07-21 15:49:56 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:50:33 V 19 53 13.58 -14 59 34.8 13.1 V 247
2021-07-21 15:50:33 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:50:35 V 19 53 13.06 -14 59 34.8 13.0 V 247
2021-07-21 15:50:35 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:51:13 V 19 53 13.69 -14 59 27.7 13.0 V 247
2021-07-21 15:51:13 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:51:15 V 19 53 13.18 -14 59 27.9 13.0 V 247
2021-07-21 15:51:15 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:51:52 V 19 53 13.79 -14 59 20.9 12.9 V 247
2021-07-21 15:51:52 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:51:55 V 19 53 13.30 -14 59 20.7 13.1 V 247
2021-07-21 15:51:55 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:52:32 V 19 53 13.93 -14 59 13.5 13.2 V 247
2021-07-21 15:52:32 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:53:12 V 19 53 14.02 -14 59 07.4 13.1 V 247
2021-07-21 15:53:12 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:53:14 V 19 53 13.52 -14 59 06.1 13.1 V 247
2021-07-21 15:53:14 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:53:52 V 19 53 14.15 -14 58 59.6 13.0 V 247
2021-07-21 15:53:52 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:53:54 V 19 53 13.64 -14 58 59.5 13.0 V 247
2021-07-21 15:53:54 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:54:31 V 19 53 14.25 -14 58 52.5 13.0 V 247
2021-07-21 15:54:31 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:54:34 V 19 53 13.74 -14 58 52.4 13.1 V 247
2021-07-21 15:54:34 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:55:11 V 19 53 14.37 -14 58 45.3 13.0 V 247
2021-07-21 15:55:11 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:55:13 V 19 53 13.87 -14 58 45.1 13.1 V 247
2021-07-21 15:55:13 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:55:51 V 19 53 14.46 -14 58 38.5 12.9 V 247
2021-07-21 15:55:51 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:55:53 V 19 53 13.97 -14 58 38.2 13.1 V 247
2021-07-21 15:55:53 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:56:30 V 19 53 14.60 -14 58 31.3 13.1 V 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)