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
2021-08-05 04:11:18 V 20 46 36.49 +30 02 08.4 15.0 V 247
2021-08-05 04:11:18 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:12:18 V 20 46 36.58 +30 02 12.7 14.9 V 247
2021-08-05 04:12:18 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:13:18 V 20 46 36.68 +30 02 16.8 15.4 V 247
2021-08-05 04:13:18 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:13:59 S 20 48 28.394 +29 33 52.52 – V C57
2021-08-05 04:13:59 s 1 -183818.22 3 +41354.102 6630.0 – C57
2021-08-05 04:21:14 V 20 46 37.38 +30 02 50.4 15.4 V 247
2021-08-05 04:21:14 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:23:59 S 20 48 29.820 +29 34 40.51 – V C57
2021-08-05 04:23:59 s 1 -183477.32 0 +40490.753 5550.0 – C57
2021-08-05 04:25:12 V 20 46 37.72 +30 03 07.2 15.5 V 247
2021-08-05 04:25:12 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:26:12 V 20 46 37.82 +30 03 11.8 15.1 V 247
2021-08-05 04:26:12 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:27:12 V 20 46 37.90 +30 03 15.8 14.9 V 247
2021-08-05 04:27:12 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:28:11 V 20 46 37.99 +30 03 19.9 14.8 V 247
2021-08-05 04:28:11 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:29:11 V 20 46 38.06 +30 03 23.9 14.7 V 247
2021-08-05 04:29:11 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:30:10 V 20 46 38.18 +30 03 28.5 15.0 V 247
2021-08-05 04:30:10 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:31:10 V 20 46 38.29 +30 03 33.0 15.0 V 247
2021-08-05 04:31:10 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:32:09 V 20 46 38.31 +30 03 36.3 15.4 V 247
2021-08-05 04:32:09 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:33:59 S 20 48 31.193 +29 35 29.90 – V C57
2021-08-05 04:33:59 s 1 -183132.95 7 +39626.647 3480.0 – C57
2021-08-05 04:36:05 V 20 46 41.12 +30 03 22.0 14.5 V 247
2021-08-05 04:36:05 v 1 237.89526 +47.56314 – – 247
2021-08-05 04:37:13 V 20 46 38.80 +30 03 57.4 15.6 V 247
2021-08-05 04:37:13 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:38:12 V 20 46 38.87 +30 04 02.3 15.2 V 247
2021-08-05 04:38:12 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:39:04 V 20 46 41.34 +30 03 33.9 14.9 V 247
2021-08-05 04:39:04 v 1 237.89526 +47.56314 – – 247
2021-08-05 04:39:12 V 20 46 38.96 +30 04 06.0 15.1 V 247
2021-08-05 04:39:12 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:40:03 V 20 46 41.31 +30 03 38.9 14.7 V 247
2021-08-05 04:40:03 v 1 237.89526 +47.56314 – – 247
2021-08-05 04:40:11 V 20 46 39.05 +30 04 10.2 15.3 V 247
2021-08-05 04:40:11 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:41:11 V 20 46 39.14 +30 04 14.1 15.5 V 247
2021-08-05 04:41:11 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:42:11 V 20 46 39.22 +30 04 18.1 15.2 V 247
2021-08-05 04:42:11 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:43:10 V 20 46 39.32 +30 04 22.5 14.9 V 247
2021-08-05 04:43:10 v 1 276.64224 +33.90559 – – 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)