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 04:06:33 V 20 35 01.81 +21 57 03.8 14.8 V 247
2021-08-01 04:06:33 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:07:33 V 20 35 01.92 +21 57 09.9 14.7 V 247
2021-08-01 04:07:33 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:08:32 V 20 35 02.07 +21 57 16.1 14.6 V 247
2021-08-01 04:08:32 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:09:32 V 20 35 02.18 +21 57 21.8 14.4 V 247
2021-08-01 04:09:32 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:10:32 V 20 35 02.30 +21 57 27.8 14.6 V 247
2021-08-01 04:10:32 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:11:31 V 20 35 02.39 +21 57 34.6 14.6 V 247
2021-08-01 04:11:31 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:11:38 V 20 34 59.26 +21 57 56.7 13.1 V 247
2021-08-01 04:11:38 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:12:31 V 20 35 02.49 +21 57 40.0 14.6 V 247
2021-08-01 04:12:31 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:13:30 V 20 35 02.62 +21 57 46.3 14.6 V 247
2021-08-01 04:13:30 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:13:59 S 20 32 31.742 +21 14 24.90 – V C57
2021-08-01 04:13:59 s 1 -117929.90 6 +357849.33 1200.0 – C57
2021-08-01 04:14:30 V 20 35 02.74 +21 57 52.4 14.6 V 247
2021-08-01 04:14:30 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:15:29 V 20 35 02.87 +21 57 58.3 14.5 V 247
2021-08-01 04:15:29 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:16:29 V 20 35 02.97 +21 58 04.8 14.5 V 247
2021-08-01 04:16:29 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:17:19 V 20 34 59.89 +21 58 32.0 13.1 V 247
2021-08-01 04:17:19 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:17:29 V 20 35 03.07 +21 58 10.9 14.7 V 247
2021-08-01 04:17:29 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:18:28 V 20 35 03.19 +21 58 16.8 14.6 V 247
2021-08-01 04:18:28 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:19:28 V 20 35 03.32 +21 58 22.9 14.7 V 247
2021-08-01 04:19:28 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:20:27 V 20 35 03.43 +21 58 29.0 14.6 V 247
2021-08-01 04:20:27 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:21:27 V 20 35 03.56 +21 58 34.9 14.5 V 247
2021-08-01 04:21:27 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:22:26 V 20 35 03.65 +21 58 40.9 14.8 V 247
2021-08-01 04:22:26 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:22:40 V 20 35 00.50 +21 59 04.4 14.9 V 247
2021-08-01 04:22:40 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:23:26 V 20 35 03.76 +21 58 47.2 14.6 V 247
2021-08-01 04:23:26 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:23:37 V 20 35 00.62 +21 59 10.9 15.0 V 247
2021-08-01 04:23:37 v 1 279.74313 +26.94155 – – 247
2021-08-01 04:24:25 V 20 35 03.87 +21 58 53.0 14.6 V 247
2021-08-01 04:24:25 v 1 242.98596 +33.20762 – – 247
2021-08-01 04:24:33 V 20 35 00.70 +21 59 15.9 14.9 V 247
2021-08-01 04:24:33 v 1 279.74313 +26.94155 – – 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)