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
2021-09-10 17:51:51 C 21 45 22.56 +45 09 05.3 – X L76
2021-09-10 17:52:25 C 21 45 22.57 +45 09 04.6 – X L76
2021-09-10 17:52:58 C 21 45 22.61 +45 09 04.6 – X L76
2021-09-10 17:53:32 C 21 45 22.61 +45 09 04.1 – X L76
2021-09-10 17:54:05 C 21 45 22.63 +45 09 04.6 – X L76
2021-09-10 17:54:39 C 21 45 22.67 +45 09 04.3 – X L76
2021-09-10 17:55:12 C 21 45 22.70 +45 09 04.0 – X L76
2021-09-10 17:55:46 C 21 45 22.72 +45 09 04.0 – X L76
2021-09-10 17:56:19 C 21 45 22.75 +45 09 03.9 – X L76
2021-09-10 17:56:53 C 21 45 22.77 +45 09 03.9 – X L76
2021-09-10 17:57:26 C 21 45 22.78 +45 09 03.3 – X L76
2021-09-10 17:58:00 C 21 45 22.78 +45 09 03.3 – X L76
2021-09-10 17:58:33 C 21 45 22.84 +45 09 03.2 – X L76
2021-09-10 17:59:07 C 21 45 22.86 +45 09 02.8 – X L76
2021-09-10 17:59:40 C 21 45 22.87 +45 09 02.9 – X L76
2021-09-10 18:00:14 C 21 45 22.87 +45 09 02.6 – X L76
2021-09-10 18:00:47 C 21 45 22.92 +45 09 02.6 – X L76
2021-09-10 18:01:21 C 21 45 22.93 +45 09 02.4 – X L76
2021-09-10 18:01:55 C 21 45 22.95 +45 09 02.0 – X L76
2021-09-10 18:02:28 C 21 45 22.98 +45 09 01.9 – X L76
2021-09-10 18:03:02 C 21 45 23.02 +45 09 01.8 – X L76
2021-09-10 18:03:35 C 21 45 23.06 +45 09 01.8 – X L76
2021-09-10 18:04:09 C 21 45 23.07 +45 09 01.4 – X L76
2021-09-10 18:04:42 C 21 45 23.11 +45 09 01.4 – X L76
2021-09-10 18:05:16 C 21 45 23.11 +45 09 01.1 – X L76
2021-09-10 18:05:50 C 21 45 23.12 +45 09 01.1 – X L76
2021-09-10 18:06:24 C 21 45 23.14 +45 09 00.3 – X L76
2021-09-10 18:06:58 C 21 45 23.20 +45 09 00.7 – X L76
2021-09-10 18:07:31 C 21 45 23.16 +45 09 00.6 – X L76
2021-09-10 18:08:05 C 21 45 23.21 +45 09 00.4 – X L76
2021-09-10 18:08:39 C 21 45 23.27 +45 09 00.2 – X L76
2021-09-10 18:09:13 C 21 45 23.29 +45 08 59.9 – X L76
2021-09-10 18:09:46 C 21 45 23.31 +45 08 59.8 – X L76
2021-09-10 18:10:20 C 21 45 23.30 +45 08 59.6 – X L76
2021-09-10 18:10:53 C 21 45 23.33 +45 08 59.7 – X L76
2021-09-10 18:11:27 C 21 45 23.38 +45 08 59.2 – X L76
2021-09-10 18:12:01 C 21 45 23.40 +45 08 59.0 – X L76
2021-09-10 18:12:34 C 21 45 23.42 +45 08 58.9 – X L76
2021-09-10 18:13:08 C 21 45 23.45 +45 08 58.9 – X L76
2021-09-10 18:13:41 C 21 45 23.48 +45 08 58.8 – X L76
2021-09-10 18:14:15 C 21 45 23.48 +45 08 58.4 – X L76
2021-09-10 19:32:29 C 21 45 27.01 +45 08 34.0 – V 089
2021-09-10 19:47:34 C 21 45 27.66 +45 08 29.0 – V 089
2021-09-10 19:50:35 C 21 45 27.72 +45 08 28.2 – V 089
2021-09-11 09:54:41 C 21 46 09.18 +45 03 55.8 – V T05
2021-09-11 10:02:37 C 21 46 09.50 +45 03 52.7 – V T05
2021-09-11 11:10:44 C 21 46 12.19 +45 03 26.0 – V T05
2021-09-11 11:24:01 C 21 46 12.70 +45 03 20.7 – V T05
2021-09-12 19:29:17 C 21 47 52.17 +44 51 17.2 – V 089
2021-09-12 19:32:17 C 21 47 52.32 +44 51 15.8 – V 089
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)