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
2021-07-21 17:20:13 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:20:52 V 19 53 28.72 -14 43 29.9 13.0 V 247
2021-07-21 17:20:52 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:21:32 V 19 53 28.82 -14 43 23.3 13.0 V 247
2021-07-21 17:21:32 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:22:12 V 19 53 28.97 -14 43 16.0 12.9 V 247
2021-07-21 17:22:12 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:22:52 V 19 53 29.09 -14 43 08.3 13.0 V 247
2021-07-21 17:22:52 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:23:31 V 19 53 29.19 -14 43 01.7 13.0 V 247
2021-07-21 17:23:31 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:24:11 V 19 53 29.32 -14 42 54.9 13.0 V 247
2021-07-21 17:24:11 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:24:51 V 19 53 29.43 -14 42 47.5 13.0 V 247
2021-07-21 17:24:51 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:25:30 V 19 53 29.55 -14 42 40.4 13.0 V 247
2021-07-21 17:25:30 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:26:10 V 19 53 29.67 -14 42 33.3 13.0 V 247
2021-07-21 17:26:10 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:26:50 V 19 53 29.79 -14 42 26.6 13.0 V 247
2021-07-21 17:26:50 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:27:30 V 19 53 29.91 -14 42 18.8 13.0 V 247
2021-07-21 17:27:30 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:28:09 V 19 53 30.01 -14 42 11.8 13.0 V 247
2021-07-21 17:28:09 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:28:49 V 19 53 30.13 -14 42 05.4 13.1 V 247
2021-07-21 17:28:49 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:29:29 V 19 53 30.26 -14 41 58.0 13.0 V 247
2021-07-21 17:29:29 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:30:08 V 19 53 30.37 -14 41 50.7 13.1 V 247
2021-07-21 17:30:08 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:30:56 V 19 53 30.47 -14 41 43.7 13.5 V 247
2021-07-21 17:30:56 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:33:19 V 19 53 30.90 -14 41 17.2 13.1 V 247
2021-07-21 17:33:19 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:33:59 V 19 53 31.05 -14 41 10.2 13.0 V 247
2021-07-21 17:33:59 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:34:38 V 19 53 31.16 -14 41 03.1 13.1 V 247
2021-07-21 17:34:38 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:35:18 V 19 53 31.29 -14 40 55.9 13.1 V 247
2021-07-21 17:35:18 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:35:58 V 19 53 31.41 -14 40 48.6 13.1 V 247
2021-07-21 17:35:58 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:36:38 V 19 53 31.53 -14 40 41.4 13.2 V 247
2021-07-21 17:36:38 v 1 139.83805 +35.03755 – – 247
2021-07-21 18:59:22 C 19 53 54.27 -14 26 16.1 – V 186
2021-07-21 18:59:54 C 19 53 54.37 -14 26 10.3 – V 186
2021-07-21 21:58:05 V 19 54 32.40 -13 54 43.7 13.2 V 247
2021-07-21 21:58:05 v 1 357.57994 +47.25999 – – 247
2021-07-21 21:58:44 V 19 54 32.55 -13 54 36.2 13.4 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)