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
2021-07-27 20:24:00 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:24:55 V 20 20 00.15 +09 27 03.9 13.7 V 247
2021-07-27 20:24:55 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:25:51 V 20 20 00.27 +09 27 12.3 13.8 V 247
2021-07-27 20:25:51 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:36:58 V 20 20 01.81 +09 28 47.2 13.9 V 247
2021-07-27 20:36:58 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:38:49 V 20 20 02.08 +09 29 02.3 13.8 V 247
2021-07-27 20:38:49 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:48:05 V 20 20 03.37 +09 30 21.1 14.0 V 247
2021-07-27 20:48:05 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:49:01 V 20 20 03.49 +09 30 28.8 13.9 V 247
2021-07-27 20:49:01 v 1 017.25163 +48.23324 – – 247
2021-07-27 20:50:52 V 20 20 03.78 +09 30 45.2 13.7 V 247
2021-07-27 20:50:52 v 1 017.25163 +48.23324 – – 247
2021-07-27 21:08:29 V 20 20 06.15 +09 33 14.2 13.8 V 247
2021-07-27 21:08:29 v 1 017.25163 +48.23324 – – 247
2021-07-27 21:14:59 V 20 20 07.14 +09 34 11.2 13.9 V 247
2021-07-27 21:14:59 v 1 017.25163 +48.23324 – – 247
2021-07-27 21:17:33 C 20 20 07.08 +09 34 37.4 – V L54
2021-07-27 21:32:35 V 20 20 09.50 +09 36 40.0 14.2 V 247
2021-07-27 21:32:35 v 1 017.25163 +48.23324 – – 247
2021-07-27 21:35:02 C 20 20 08.55 +09 37 03.9 – V 089
2021-07-27 21:38:21 C 20 20 09.00 +09 37 33.4 – V 089
2021-07-27 21:41:39 C 20 20 09.44 +09 37 59.7 – V 089
2021-07-27 21:41:45 V 20 20 10.78 +09 37 57.0 13.9 V 247
2021-07-27 21:41:45 v 1 017.25163 +48.23324 – – 247
2021-07-27 21:44:57 C 20 20 09.89 +09 38 27.8 – V 089
2021-07-27 21:48:15 C 20 20 10.31 +09 38 55.4 – V 089
2021-07-27 21:49:52 C 20 20 11.42 +09 39 11.1 – V L54
2021-07-27 21:51:33 C 20 20 10.77 +09 39 23.1 – V 089
2021-07-27 21:54:51 C 20 20 11.22 +09 39 51.2 – V 089
2021-07-27 21:58:09 C 20 20 11.63 +09 40 19.1 – V 089
2021-07-27 22:00:05 C 20 20 12.40 +09 40 32.2 – V L18
2021-07-27 22:00:17 C 20 20 12.41 +09 40 32.7 – V L18
2021-07-27 22:00:30 C 20 20 12.46 +09 40 36.0 – V L18
2021-07-27 22:00:43 C 20 20 12.49 +09 40 37.7 – V L18
2021-07-27 22:00:56 C 20 20 12.51 +09 40 39.7 – V L18
2021-07-27 22:01:09 C 20 20 12.57 +09 40 41.5 – V L18
2021-07-27 22:01:22 C 20 20 12.59 +09 40 43.9 – V L18
2021-07-27 22:01:27 C 20 20 12.11 +09 40 47.0 – V 089
2021-07-27 22:01:35 C 20 20 12.60 +09 40 45.0 – V L18
2021-07-27 22:01:48 C 20 20 12.60 +09 40 47.0 – V L18
2021-07-27 22:02:01 C 20 20 12.66 +09 40 48.7 – V L18
2021-07-27 22:02:14 C 20 20 12.69 +09 40 50.4 – V L18
2021-07-27 22:02:27 C 20 20 12.69 +09 40 52.1 – V L18
2021-07-27 22:02:40 C 20 20 12.74 +09 40 53.6 – V L18
2021-07-27 22:02:53 C 20 20 12.76 +09 40 56.3 – V L18
2021-07-27 22:03:06 C 20 20 12.85 +09 40 57.6 – V L18
2021-07-27 22:04:45 C 20 20 12.55 +09 41 14.7 – 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)