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 14:29:56 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:30:36 V 19 53 00.05 -15 13 46.5 13.1 V 247
2021-07-21 14:30:36 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:31:15 V 19 53 00.13 -15 13 38.4 13.0 V 247
2021-07-21 14:31:15 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:31:55 V 19 53 00.25 -15 13 31.7 13.1 V 247
2021-07-21 14:31:55 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:32:35 V 19 53 00.36 -15 13 25.0 13.1 V 247
2021-07-21 14:32:35 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:33:14 V 19 53 00.46 -15 13 17.8 13.1 V 247
2021-07-21 14:33:14 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:33:54 V 19 53 00.59 -15 13 10.8 13.0 V 247
2021-07-21 14:33:54 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:34:34 V 19 53 00.70 -15 13 03.4 13.1 V 247
2021-07-21 14:34:34 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:35:14 V 19 53 00.84 -15 12 57.6 13.1 V 247
2021-07-21 14:35:14 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:35:53 V 19 53 00.96 -15 12 49.0 12.9 V 247
2021-07-21 14:35:53 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:36:33 V 19 53 01.04 -15 12 43.7 12.9 V 247
2021-07-21 14:36:33 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:37:13 V 19 53 01.18 -15 12 36.3 13.0 V 247
2021-07-21 14:37:13 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:37:52 V 19 53 01.29 -15 12 29.7 13.0 V 247
2021-07-21 14:37:52 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:38:32 V 19 53 01.39 -15 12 22.2 13.1 V 247
2021-07-21 14:38:32 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:39:12 V 19 53 01.51 -15 12 14.3 12.9 V 247
2021-07-21 14:39:12 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:39:52 V 19 53 01.61 -15 12 07.4 13.0 V 247
2021-07-21 14:39:52 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:40:31 V 19 53 01.72 -15 12 00.7 13.1 V 247
2021-07-21 14:40:31 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:41:11 V 19 53 01.84 -15 11 53.2 13.3 V 247
2021-07-21 14:41:11 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:41:51 V 19 53 01.94 -15 11 46.7 13.1 V 247
2021-07-21 14:41:51 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:42:30 V 19 53 02.06 -15 11 39.3 13.0 V 247
2021-07-21 14:42:30 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:43:10 V 19 53 02.15 -15 11 32.5 12.9 V 247
2021-07-21 14:43:10 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:43:50 V 19 53 02.28 -15 11 25.5 12.8 V 247
2021-07-21 14:43:50 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:44:29 V 19 53 02.38 -15 11 18.8 13.0 V 247
2021-07-21 14:44:29 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:45:09 V 19 53 02.49 -15 11 11.7 13.1 V 247
2021-07-21 14:45:09 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:45:49 V 19 53 02.62 -15 11 03.7 13.1 V 247
2021-07-21 14:45:49 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:46:29 V 19 53 02.74 -15 10 56.9 13.0 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)