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 03:52:40 V 20 34 57.34 +21 56 02.9 15.4 V 247
2021-08-01 03:52:40 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:53:37 V 20 34 57.46 +21 56 09.1 15.4 V 247
2021-08-01 03:53:37 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:53:39 V 20 35 00.31 +21 55 44.4 14.4 V 247
2021-08-01 03:53:39 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:53:59 S 20 32 28.248 +21 12 28.84 – V C57
2021-08-01 03:53:59 s 1 -117285.41 7 +358348.89 7170.0 – C57
2021-08-01 03:54:34 V 20 34 57.55 +21 56 14.5 15.3 V 247
2021-08-01 03:54:34 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:54:38 V 20 35 00.44 +21 55 50.5 14.4 V 247
2021-08-01 03:54:38 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:55:31 V 20 34 57.65 +21 56 20.2 15.4 V 247
2021-08-01 03:55:31 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:55:38 V 20 35 00.55 +21 55 56.5 14.6 V 247
2021-08-01 03:55:38 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:56:28 V 20 34 57.75 +21 56 26.3 15.0 V 247
2021-08-01 03:56:28 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:56:38 V 20 35 00.68 +21 56 02.9 14.4 V 247
2021-08-01 03:56:38 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:57:25 V 20 34 57.84 +21 56 31.7 14.7 V 247
2021-08-01 03:57:25 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:57:37 V 20 35 00.80 +21 56 09.2 14.7 V 247
2021-08-01 03:57:37 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:58:21 V 20 34 57.95 +21 56 37.6 13.3 V 247
2021-08-01 03:58:21 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:58:37 V 20 35 00.89 +21 56 14.7 14.4 V 247
2021-08-01 03:58:37 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:59:18 V 20 34 58.04 +21 56 43.2 14.8 V 247
2021-08-01 03:59:18 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:59:36 V 20 35 01.01 +21 56 20.9 14.7 V 247
2021-08-01 03:59:36 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:00:15 V 20 34 58.13 +21 56 48.7 15.0 V 247
2021-08-01 04:00:15 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:00:36 V 20 35 01.17 +21 56 27.4 14.4 V 247
2021-08-01 04:00:36 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:01:12 V 20 34 58.23 +21 56 53.8 14.8 V 247
2021-08-01 04:01:12 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:01:35 V 20 35 01.25 +21 56 33.2 14.7 V 247
2021-08-01 04:01:35 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:02:35 V 20 35 01.37 +21 56 39.5 14.7 V 247
2021-08-01 04:02:35 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:03:35 V 20 35 01.47 +21 56 45.4 14.3 V 247
2021-08-01 04:03:35 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:03:59 S 20 32 30.031 +21 13 27.44 – V C57
2021-08-01 04:03:59 s 1 -117607.81 4 +358099.59 9720.0 – C57
2021-08-01 04:04:34 V 20 35 01.62 +21 56 50.2 14.7 V 247
2021-08-01 04:04:34 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:05:34 V 20 35 01.71 +21 56 57.2 14.5 V 247
2021-08-01 04:05:34 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)