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
2021-09-05 20:00:11 C 21 39 28.10 +45 37 12.4 – V 089
2021-09-05 20:03:11 C 21 39 28.22 +45 37 12.2 – V 089
2021-09-05 20:06:13 C 21 39 28.28 +45 37 12.0 – V 089
2021-09-05 20:09:14 C 21 39 28.40 +45 37 11.6 – V 089
2021-09-05 20:12:15 C 21 39 28.50 +45 37 11.3 – V 089
2021-09-05 20:15:16 C 21 39 28.67 +45 37 10.8 – V 089
2021-09-05 20:18:18 C 21 39 28.87 +45 37 09.1 – V 089
2021-09-05 20:21:21 C 21 39 28.93 +45 37 09.5 – V 089
2021-09-05 20:24:24 C 21 39 29.04 +45 37 09.7 – V 089
2021-09-05 20:27:28 C 21 39 29.18 +45 37 08.8 – V 089
2021-09-07 20:14:49 C 21 41 52.59 +45 28 20.6 – V 089
2021-09-07 20:17:51 C 21 41 52.71 +45 28 21.1 – V 089
2021-09-07 20:20:55 C 21 41 52.81 +45 28 19.5 – V 089
2021-09-07 20:24:01 C 21 41 52.97 +45 28 19.4 – V 089
2021-09-07 20:27:08 C 21 41 53.10 +45 28 18.2 – V 089
2021-09-07 20:55:44 C 21 41 54.12 +45 28 11.8 – V 089
2021-09-07 21:01:46 C 21 41 54.53 +45 28 10.2 – V 089
2021-09-07 21:04:47 C 21 41 54.62 +45 28 09.3 – V 089
2021-09-08 20:08:57 C 21 43 04.21 +45 22 33.8 – V 089
2021-09-08 20:11:59 C 21 43 04.36 +45 22 33.0 – V 089
2021-09-08 20:15:01 C 21 43 04.52 +45 22 32.4 – V 089
2021-09-08 20:18:05 C 21 43 04.61 +45 22 31.7 – V 089
2021-09-09 20:10:12 C 21 44 16.32 +45 15 53.2 – V 089
2021-09-09 20:13:16 C 21 44 16.48 +45 15 51.0 – V 089
2021-09-09 20:16:20 C 21 44 16.56 +45 15 50.4 – V 089
2021-09-09 20:19:25 C 21 44 16.76 +45 15 48.6 – V 089
2021-09-09 20:48:00 C 21 44 17.87 +45 15 41.4 – V 089
2021-09-09 20:51:02 C 21 44 18.03 +45 15 40.3 – V 089
2021-09-09 20:54:02 C 21 44 18.13 +45 15 39.3 – V 089
2021-09-09 20:57:03 C 21 44 18.26 +45 15 38.4 – V 089
2021-09-09 21:00:04 C 21 44 18.35 +45 15 37.3 – V 089
2021-09-10 17:41:14 C 21 45 22.05 +45 09 08.5 – X L76
2021-09-10 17:41:48 C 21 45 22.13 +45 09 08.0 – X L76
2021-09-10 17:42:21 C 21 45 22.13 +45 09 08.1 – X L76
2021-09-10 17:42:55 C 21 45 22.17 +45 09 08.2 – X L76
2021-09-10 17:43:28 C 21 45 22.17 +45 09 07.7 – X L76
2021-09-10 17:44:02 C 21 45 22.21 +45 09 07.5 – X L76
2021-09-10 17:44:35 C 21 45 22.24 +45 09 07.5 – X L76
2021-09-10 17:45:09 C 21 45 22.25 +45 09 07.1 – X L76
2021-09-10 17:45:42 C 21 45 22.30 +45 09 07.0 – X L76
2021-09-10 17:46:16 C 21 45 22.32 +45 09 06.8 – X L76
2021-09-10 17:46:49 C 21 45 22.32 +45 09 06.8 – X L76
2021-09-10 17:47:23 C 21 45 22.35 +45 09 06.5 – X L76
2021-09-10 17:47:56 C 21 45 22.40 +45 09 07.3 – X L76
2021-09-10 17:48:30 C 21 45 22.38 +45 09 06.0 – X L76
2021-09-10 17:49:03 C 21 45 22.43 +45 09 06.1 – X L76
2021-09-10 17:49:37 C 21 45 22.45 +45 09 05.9 – X L76
2021-09-10 17:50:11 C 21 45 22.50 +45 09 05.7 – X L76
2021-09-10 17:50:44 C 21 45 22.52 +45 09 05.4 – X L76
2021-09-10 17:51:17 C 21 45 22.52 +45 09 05.4 – X L76
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)