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
2021-08-01 05:19:58 V 20 35 10.08 +22 04 31.5 14.7 V 247
2021-08-01 05:19:58 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:20:57 V 20 35 10.16 +22 04 38.1 14.2 V 247
2021-08-01 05:20:57 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:21:57 V 20 35 10.28 +22 04 43.5 14.4 V 247
2021-08-01 05:21:57 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:22:57 V 20 35 10.40 +22 04 49.6 14.5 V 247
2021-08-01 05:22:57 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:23:56 V 20 35 10.52 +22 04 55.6 14.5 V 247
2021-08-01 05:23:56 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:24:56 V 20 35 10.63 +22 05 01.5 14.6 V 247
2021-08-01 05:24:56 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:25:55 V 20 35 10.73 +22 05 07.7 14.5 V 247
2021-08-01 05:25:55 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:26:55 V 20 35 10.84 +22 05 13.6 14.6 V 247
2021-08-01 05:26:55 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:27:54 V 20 35 10.93 +22 05 19.6 14.6 V 247
2021-08-01 05:27:54 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:28:54 V 20 35 11.05 +22 05 26.0 14.3 V 247
2021-08-01 05:28:54 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:29:54 V 20 35 11.15 +22 05 31.7 14.7 V 247
2021-08-01 05:29:54 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:30:53 V 20 35 11.25 +22 05 37.8 14.6 V 247
2021-08-01 05:30:53 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:31:53 V 20 35 11.37 +22 05 44.0 14.6 V 247
2021-08-01 05:31:53 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:32:52 V 20 35 11.50 +22 05 50.2 14.6 V 247
2021-08-01 05:32:52 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:33:52 V 20 35 11.57 +22 05 55.9 14.6 V 247
2021-08-01 05:33:52 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:34:51 V 20 35 11.68 +22 06 01.9 14.5 V 247
2021-08-01 05:34:51 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:35:51 V 20 35 11.79 +22 06 08.2 14.5 V 247
2021-08-01 05:35:51 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:36:51 V 20 35 11.90 +22 06 14.2 14.4 V 247
2021-08-01 05:36:51 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:37:50 V 20 35 12.02 +22 06 19.8 14.5 V 247
2021-08-01 05:37:50 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:38:50 V 20 35 12.13 +22 06 26.0 14.5 V 247
2021-08-01 05:38:50 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:39:49 V 20 35 12.26 +22 06 32.0 14.5 V 247
2021-08-01 05:39:49 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:40:49 V 20 35 12.34 +22 06 37.6 14.4 V 247
2021-08-01 05:40:49 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:41:48 V 20 35 12.46 +22 06 43.8 14.5 V 247
2021-08-01 05:41:48 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:42:48 V 20 35 12.57 +22 06 50.0 14.5 V 247
2021-08-01 05:42:48 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:43:48 V 20 35 12.66 +22 06 55.6 14.6 V 247
2021-08-01 05:43:48 v 1 242.98596 +33.20762 – – 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)