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 04:50:28 V 20 35 06.79 +22 01 32.4 14.4 V 247
2021-08-01 04:50:28 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:52:27 V 20 35 07.00 +22 01 44.5 14.3 V 247
2021-08-01 04:52:27 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:53:26 V 20 35 07.10 +22 01 50.4 14.4 V 247
2021-08-01 04:53:26 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:54:26 V 20 35 07.23 +22 01 56.4 14.5 V 247
2021-08-01 04:54:26 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:55:25 V 20 35 07.31 +22 02 02.6 14.6 V 247
2021-08-01 04:55:25 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:56:25 V 20 35 07.48 +22 02 08.9 14.2 V 247
2021-08-01 04:56:25 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:57:24 V 20 35 07.56 +22 02 14.8 14.5 V 247
2021-08-01 04:57:24 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:58:24 V 20 35 07.67 +22 02 21.1 14.6 V 247
2021-08-01 04:58:24 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:59:24 V 20 35 07.79 +22 02 26.8 14.6 V 247
2021-08-01 04:59:24 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:00:23 V 20 35 07.89 +22 02 32.9 14.5 V 247
2021-08-01 05:00:23 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:01:23 V 20 35 08.00 +22 02 39.3 14.4 V 247
2021-08-01 05:01:23 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:02:22 V 20 35 08.10 +22 02 44.9 14.5 V 247
2021-08-01 05:02:22 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:03:22 V 20 35 08.22 +22 02 51.1 14.6 V 247
2021-08-01 05:03:22 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:04:21 V 20 35 08.34 +22 02 57.2 14.6 V 247
2021-08-01 05:04:21 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:05:21 V 20 35 08.44 +22 03 03.2 14.5 V 247
2021-08-01 05:05:21 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:06:21 V 20 35 08.56 +22 03 09.4 14.5 V 247
2021-08-01 05:06:21 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:07:20 V 20 35 08.66 +22 03 15.3 14.5 V 247
2021-08-01 05:07:20 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:08:20 V 20 35 08.77 +22 03 21.1 14.5 V 247
2021-08-01 05:08:20 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:09:19 V 20 35 08.88 +22 03 26.9 14.7 V 247
2021-08-01 05:09:19 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:10:19 V 20 35 08.99 +22 03 33.2 14.6 V 247
2021-08-01 05:10:19 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:11:18 V 20 35 09.11 +22 03 39.2 14.5 V 247
2021-08-01 05:11:18 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:12:18 V 20 35 09.22 +22 03 45.1 14.5 V 247
2021-08-01 05:12:18 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:13:18 V 20 35 09.32 +22 03 51.4 14.5 V 247
2021-08-01 05:13:18 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:14:17 V 20 35 09.43 +22 03 57.2 14.4 V 247
2021-08-01 05:14:17 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:18:58 V 20 35 09.96 +22 04 25.6 14.5 V 247
2021-08-01 05:18:58 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)