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 15:09:59 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:10:39 V 19 53 06.80 -15 06 39.7 12.9 V 247
2021-07-21 15:10:39 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:11:18 V 19 53 06.90 -15 06 33.1 13.0 V 247
2021-07-21 15:11:18 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:11:58 V 19 53 07.02 -15 06 25.9 12.9 V 247
2021-07-21 15:11:58 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:12:38 V 19 53 07.13 -15 06 18.4 13.0 V 247
2021-07-21 15:12:38 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:13:17 V 19 53 07.25 -15 06 12.0 13.0 V 247
2021-07-21 15:13:17 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:13:57 V 19 53 07.35 -15 06 05.2 13.0 V 247
2021-07-21 15:13:57 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:14:37 V 19 53 07.46 -15 05 57.8 12.9 V 247
2021-07-21 15:14:37 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:15:17 V 19 53 07.59 -15 05 50.5 13.0 V 247
2021-07-21 15:15:17 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:15:56 V 19 53 07.71 -15 05 43.5 13.0 V 247
2021-07-21 15:15:56 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:16:36 V 19 53 07.81 -15 05 36.3 12.9 V 247
2021-07-21 15:16:36 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:17:16 V 19 53 07.92 -15 05 29.9 13.0 V 247
2021-07-21 15:17:16 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:17:55 V 19 53 08.03 -15 05 22.6 12.9 V 247
2021-07-21 15:17:55 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:18:35 V 19 53 08.15 -15 05 15.5 12.8 V 247
2021-07-21 15:18:35 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:19:15 V 19 53 08.25 -15 05 08.2 12.9 V 247
2021-07-21 15:19:15 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:19:54 V 19 53 08.37 -15 05 01.8 12.9 V 247
2021-07-21 15:19:54 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:20:34 V 19 53 08.53 -15 04 54.3 12.8 V 247
2021-07-21 15:20:34 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:21:14 V 19 53 08.61 -15 04 46.9 13.1 V 247
2021-07-21 15:21:14 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:21:54 V 19 53 08.70 -15 04 40.5 13.0 V 247
2021-07-21 15:21:54 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:22:33 V 19 53 08.84 -15 04 33.1 13.0 V 247
2021-07-21 15:22:33 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:23:13 V 19 53 08.95 -15 04 25.9 12.9 V 247
2021-07-21 15:23:13 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:23:53 V 19 53 09.05 -15 04 18.9 13.0 V 247
2021-07-21 15:23:53 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:24:48 V 19 53 09.23 -15 04 09.1 13.0 V 247
2021-07-21 15:24:48 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:25:28 V 19 53 09.32 -15 04 02.4 12.9 V 247
2021-07-21 15:25:28 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:26:08 V 19 53 09.44 -15 03 55.2 13.0 V 247
2021-07-21 15:26:08 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:26:47 V 19 53 09.55 -15 03 47.9 12.9 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)