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
2021-07-18 17:07:30 V 19 38 08.99 -27 11 08.0 13.4 V 247
2021-07-18 17:07:30 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:08:49 V 19 38 09.29 -27 10 53.1 13.3 V 247
2021-07-18 17:08:49 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:15:25 V 19 38 10.61 -27 09 47.1 13.2 V 247
2021-07-18 17:15:25 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:16:05 V 19 38 10.74 -27 09 40.5 13.2 V 247
2021-07-18 17:16:05 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:16:45 V 19 38 10.88 -27 09 33.9 13.2 V 247
2021-07-18 17:16:45 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:17:24 V 19 38 11.00 -27 09 27.1 13.2 V 247
2021-07-18 17:17:24 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:18:04 V 19 38 11.14 -27 09 20.5 13.1 V 247
2021-07-18 17:18:04 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:18:44 V 19 38 11.28 -27 09 13.8 13.1 V 247
2021-07-18 17:18:44 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:19:23 V 19 38 11.42 -27 09 06.8 13.2 V 247
2021-07-18 17:19:23 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:20:03 V 19 38 11.54 -27 09 00.6 13.2 V 247
2021-07-18 17:20:03 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:20:43 V 19 38 11.68 -27 08 53.6 13.2 V 247
2021-07-18 17:20:43 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:21:23 V 19 38 11.80 -27 08 46.9 13.1 V 247
2021-07-18 17:21:23 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:22:02 V 19 38 11.94 -27 08 40.2 13.2 V 247
2021-07-18 17:22:02 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:22:42 V 19 38 12.08 -27 08 33.8 13.1 V 247
2021-07-18 17:22:42 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:23:22 V 19 38 12.21 -27 08 26.9 13.1 V 247
2021-07-18 17:23:22 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:24:01 V 19 38 12.32 -27 08 20.2 13.2 V 247
2021-07-18 17:24:01 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:24:41 V 19 38 12.47 -27 08 13.5 13.2 V 247
2021-07-18 17:24:41 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:25:21 V 19 38 12.61 -27 08 06.7 13.1 V 247
2021-07-18 17:25:21 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:26:01 V 19 38 12.72 -27 08 00.2 13.1 V 247
2021-07-18 17:26:01 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:26:40 V 19 38 12.86 -27 07 53.4 13.6 V 247
2021-07-18 17:26:40 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:28:00 V 19 38 13.17 -27 07 38.0 12.7 V 247
2021-07-18 17:28:00 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:30:39 V 19 38 13.69 -27 07 12.1 13.0 V 247
2021-07-18 17:30:39 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:31:58 V 19 38 13.91 -27 07 00.2 13.5 V 247
2021-07-18 17:31:58 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:32:38 V 19 38 14.09 -27 06 52.8 13.1 V 247
2021-07-18 17:32:38 v 1 151.94304 -27.45579 – – 247
2021-07-18 17:33:17 V 19 38 14.21 -27 06 46.4 13.1 V 247
2021-07-18 17:33:17 v 1 151.94304 -27.45579 – – 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)