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 04:25:25 V 20 35 03.93 +21 58 59.5 14.5 V 247
2021-08-01 04:25:25 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:25:30 V 20 35 00.78 +21 59 21.5 15.4 V 247
2021-08-01 04:25:30 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:26:25 V 20 35 04.05 +21 59 05.4 14.7 V 247
2021-08-01 04:26:25 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:26:27 V 20 35 00.86 +21 59 27.2 15.5 V 247
2021-08-01 04:26:27 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:27:24 V 20 35 00.99 +21 59 33.0 15.5 V 247
2021-08-01 04:27:24 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:27:24 V 20 35 04.16 +21 59 11.6 14.8 V 247
2021-08-01 04:27:24 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:28:21 V 20 35 01.07 +21 59 38.3 14.8 V 247
2021-08-01 04:28:21 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:28:24 V 20 35 04.29 +21 59 17.7 14.7 V 247
2021-08-01 04:28:24 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:29:18 V 20 35 01.24 +21 59 44.1 14.4 V 247
2021-08-01 04:29:18 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:29:23 V 20 35 04.43 +21 59 23.7 14.5 V 247
2021-08-01 04:29:23 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:30:15 V 20 35 01.27 +21 59 49.8 14.6 V 247
2021-08-01 04:30:15 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:30:23 V 20 35 04.53 +21 59 30.0 14.8 V 247
2021-08-01 04:30:23 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:33:05 V 20 35 01.57 +22 00 06.9 15.9 V 247
2021-08-01 04:33:05 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:33:59 S 20 32 35.232 +21 16 21.61 – V C57
2021-08-01 04:33:59 s 1 -118573.17 1 +357345.98 1000.0 – C57
2021-08-01 04:35:34 V 20 35 05.13 +22 00 01.3 14.6 V 247
2021-08-01 04:35:34 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:36:34 V 20 35 05.23 +22 00 07.3 14.5 V 247
2021-08-01 04:36:34 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:37:33 V 20 35 05.34 +22 00 13.1 14.8 V 247
2021-08-01 04:37:33 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:38:33 V 20 35 05.46 +22 00 19.5 14.8 V 247
2021-08-01 04:38:33 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:39:32 V 20 35 05.57 +22 00 25.3 14.7 V 247
2021-08-01 04:39:32 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:40:32 V 20 35 05.69 +22 00 31.5 14.9 V 247
2021-08-01 04:40:32 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:41:31 V 20 35 05.79 +22 00 37.6 14.5 V 247
2021-08-01 04:41:31 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:43:31 V 20 35 06.04 +22 00 49.6 14.8 V 247
2021-08-01 04:43:31 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:44:30 V 20 35 06.14 +22 00 56.1 14.6 V 247
2021-08-01 04:44:30 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:46:29 V 20 35 06.38 +22 01 06.8 14.2 V 247
2021-08-01 04:46:29 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:49:28 V 20 35 06.66 +22 01 26.4 14.9 V 247
2021-08-01 04:49:28 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)