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 12:06:39 V 20 36 03.09 +22 44 31.0 14.8 V 247
2021-08-01 12:06:39 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:07:05 V 20 36 02.37 +22 46 15.7 14.7 V 247
2021-08-01 12:07:05 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:07:39 V 20 36 03.21 +22 44 37.0 14.7 V 247
2021-08-01 12:07:39 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:08:05 V 20 36 02.50 +22 46 22.0 15.0 V 247
2021-08-01 12:08:05 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:08:39 V 20 36 03.30 +22 44 42.8 14.6 V 247
2021-08-01 12:08:39 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:08:51 V 20 35 57.00 +22 45 11.0 14.5 V 247
2021-08-01 12:08:51 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:09:05 V 20 36 02.60 +22 46 27.7 15.3 V 247
2021-08-01 12:09:05 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:09:38 V 20 36 03.44 +22 44 48.7 14.4 V 247
2021-08-01 12:09:38 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:10:04 V 20 36 02.69 +22 46 33.3 14.4 V 247
2021-08-01 12:10:04 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:10:38 V 20 36 03.53 +22 44 54.7 14.7 V 247
2021-08-01 12:10:38 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:11:04 V 20 36 02.81 +22 46 40.3 13.8 V 247
2021-08-01 12:11:04 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:11:37 V 20 36 03.63 +22 45 00.2 14.7 V 247
2021-08-01 12:11:37 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:12:37 V 20 36 03.75 +22 45 06.3 15.0 V 247
2021-08-01 12:12:37 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:13:36 V 20 36 03.85 +22 45 11.9 15.5 V 247
2021-08-01 12:13:36 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:13:59 S 20 33 55.692 +22 00 17.68 – V C57
2021-08-01 12:13:59 s 1 -133008.03 3 +344717.62 7450.0 – C57
2021-08-01 12:14:36 V 20 36 03.94 +22 45 17.7 15.1 V 247
2021-08-01 12:14:36 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:15:36 V 20 36 04.06 +22 45 23.5 15.3 V 247
2021-08-01 12:15:36 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:16:35 V 20 36 04.18 +22 45 29.5 15.0 V 247
2021-08-01 12:16:35 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:17:35 V 20 36 04.30 +22 45 35.2 15.0 V 247
2021-08-01 12:17:35 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:18:34 V 20 36 04.39 +22 45 41.5 14.9 V 247
2021-08-01 12:18:34 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:19:34 V 20 36 04.51 +22 45 46.9 14.9 V 247
2021-08-01 12:19:34 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:20:33 V 20 36 04.59 +22 45 52.9 14.7 V 247
2021-08-01 12:20:33 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:21:33 V 20 36 04.73 +22 45 59.2 14.7 V 247
2021-08-01 12:21:33 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:22:33 V 20 36 04.85 +22 46 05.1 14.7 V 247
2021-08-01 12:22:33 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:23:32 V 20 36 04.93 +22 46 11.0 14.4 V 247
2021-08-01 12:23:32 v 1 140.20199 +36.17829 – – 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)