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 05:21:12 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:21:52 V 19 51 12.30 -16 50 41.7 12.9 V 247
2021-07-21 05:21:52 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:22:32 V 19 51 12.37 -16 50 34.9 13.0 V 247
2021-07-21 05:22:32 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:23:12 V 19 51 12.52 -16 50 27.0 13.3 V 247
2021-07-21 05:23:12 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:23:51 V 19 51 12.60 -16 50 20.6 13.1 V 247
2021-07-21 05:23:51 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:24:31 V 19 51 12.70 -16 50 14.2 13.1 V 247
2021-07-21 05:24:31 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:25:11 V 19 51 12.82 -16 50 07.0 12.9 V 247
2021-07-21 05:25:11 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:25:50 V 19 51 12.94 -16 50 00.3 12.9 V 247
2021-07-21 05:25:50 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:27:49 V 19 51 13.30 -16 49 39.9 12.9 V 247
2021-07-21 05:27:49 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:28:29 V 19 51 13.43 -16 49 30.6 12.8 V 247
2021-07-21 05:28:29 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:29:09 V 19 51 13.54 -16 49 26.0 12.9 V 247
2021-07-21 05:29:09 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:29:49 V 19 51 13.63 -16 49 18.7 13.0 V 247
2021-07-21 05:29:49 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:30:28 V 19 51 13.81 -16 49 12.1 13.1 V 247
2021-07-21 05:30:28 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:33:07 V 19 51 14.25 -16 48 43.8 12.9 V 247
2021-07-21 05:33:07 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:33:47 V 19 51 14.35 -16 48 37.7 13.0 V 247
2021-07-21 05:33:47 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:34:27 V 19 51 14.49 -16 48 30.2 12.9 V 247
2021-07-21 05:34:27 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:35:06 V 19 51 14.59 -16 48 23.1 12.9 V 247
2021-07-21 05:35:06 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:35:46 V 19 51 14.73 -16 48 16.5 13.0 V 247
2021-07-21 05:35:46 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:37:05 V 19 51 14.95 -16 48 02.2 12.8 V 247
2021-07-21 05:37:05 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:37:45 V 19 51 15.07 -16 47 55.6 13.0 V 247
2021-07-21 05:37:45 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:38:25 V 19 51 15.20 -16 47 48.5 13.0 V 247
2021-07-21 05:38:25 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:39:05 V 19 51 15.29 -16 47 41.4 13.0 V 247
2021-07-21 05:39:05 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:41:04 V 19 51 15.77 -16 47 19.6 12.9 V 247
2021-07-21 05:41:04 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:41:43 V 19 51 15.78 -16 47 14.0 12.8 V 247
2021-07-21 05:41:43 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:42:23 V 19 51 15.91 -16 47 07.2 13.0 V 247
2021-07-21 05:42:23 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:48:21 V 19 51 16.93 -16 46 04.4 12.8 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)