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
2021-07-29 23:40:10 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:41:10 V 20 27 41.51 +16 10 08.2 14.2 V 247
2021-07-29 23:41:10 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:42:10 V 20 27 41.61 +16 10 14.9 14.1 V 247
2021-07-29 23:42:10 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:44:09 V 20 27 41.94 +16 10 29.1 14.5 V 247
2021-07-29 23:44:09 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:45:08 V 20 27 42.02 +16 10 36.8 14.2 V 247
2021-07-29 23:45:08 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:46:48 V 20 27 42.18 +16 10 48.5 14.0 V 247
2021-07-29 23:46:48 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:47:47 V 20 27 42.28 +16 10 55.8 14.0 V 247
2021-07-29 23:47:47 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:48:47 V 20 27 42.44 +16 11 03.1 14.2 V 247
2021-07-29 23:48:47 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:49:46 V 20 27 42.52 +16 11 10.6 14.4 V 247
2021-07-29 23:49:46 v 1 016.41060 +47.95355 – – 247
2021-07-30 05:11:57 V 20 28 33.73 +16 49 34.2 14.2 V 247
2021-07-30 05:11:57 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:12:57 V 20 28 33.84 +16 49 41.4 14.2 V 247
2021-07-30 05:12:57 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:13:56 V 20 28 33.99 +16 49 48.9 14.2 V 247
2021-07-30 05:13:56 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:14:56 V 20 28 34.11 +16 49 55.3 14.4 V 247
2021-07-30 05:14:56 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:15:55 V 20 28 34.26 +16 50 02.7 14.6 V 247
2021-07-30 05:15:55 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:22:52 V 20 28 35.11 +16 50 52.6 14.8 V 247
2021-07-30 05:22:52 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:25:51 V 20 28 35.51 +16 51 14.1 14.9 V 247
2021-07-30 05:25:51 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:26:51 V 20 28 35.62 +16 51 21.2 14.6 V 247
2021-07-30 05:26:51 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:27:50 V 20 28 35.74 +16 51 27.4 14.5 V 247
2021-07-30 05:27:50 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:28:50 V 20 28 35.87 +16 51 35.5 14.4 V 247
2021-07-30 05:28:50 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:29:49 V 20 28 35.99 +16 51 42.0 14.5 V 247
2021-07-30 05:29:49 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:30:49 V 20 28 36.14 +16 51 49.2 14.3 V 247
2021-07-30 05:30:49 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:31:48 V 20 28 36.26 +16 51 56.0 14.3 V 247
2021-07-30 05:31:48 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:32:48 V 20 28 36.39 +16 52 04.2 14.3 V 247
2021-07-30 05:32:48 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:33:48 V 20 28 36.52 +16 52 11.4 14.3 V 247
2021-07-30 05:33:48 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:34:47 V 20 28 36.66 +16 52 18.0 14.4 V 247
2021-07-30 05:34:47 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:35:47 V 20 28 36.76 +16 52 24.7 14.4 V 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)