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 14:46:29 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:53:26 V 19 53 03.89 -15 09 43.1 13.1 V 247
2021-07-21 14:53:26 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:54:06 V 19 53 04.00 -15 09 36.2 12.9 V 247
2021-07-21 14:54:06 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:54:46 V 19 53 04.10 -15 09 29.3 12.9 V 247
2021-07-21 14:54:46 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:55:25 V 19 53 04.20 -15 09 22.2 13.1 V 247
2021-07-21 14:55:25 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:56:05 V 19 53 04.33 -15 09 15.4 13.1 V 247
2021-07-21 14:56:05 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:56:45 V 19 53 04.44 -15 09 07.8 12.9 V 247
2021-07-21 14:56:45 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:57:24 V 19 53 04.56 -15 09 00.6 12.9 V 247
2021-07-21 14:57:24 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:58:04 V 19 53 04.67 -15 08 53.4 13.0 V 247
2021-07-21 14:58:04 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:58:44 V 19 53 04.79 -15 08 47.2 12.9 V 247
2021-07-21 14:58:44 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:59:23 V 19 53 04.89 -15 08 39.9 12.9 V 247
2021-07-21 14:59:23 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:00:03 V 19 53 05.02 -15 08 32.7 12.9 V 247
2021-07-21 15:00:03 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:00:43 V 19 53 05.12 -15 08 25.8 12.9 V 247
2021-07-21 15:00:43 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:01:23 V 19 53 05.24 -15 08 18.7 13.1 V 247
2021-07-21 15:01:23 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:02:02 V 19 53 05.35 -15 08 11.4 13.1 V 247
2021-07-21 15:02:02 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:03:22 V 19 53 05.58 -15 07 57.3 13.1 V 247
2021-07-21 15:03:22 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:04:02 V 19 53 05.68 -15 07 50.4 13.1 V 247
2021-07-21 15:04:02 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:04:41 V 19 53 05.80 -15 07 43.6 13.0 V 247
2021-07-21 15:04:41 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:05:21 V 19 53 05.91 -15 07 36.8 12.9 V 247
2021-07-21 15:05:21 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:06:01 V 19 53 06.02 -15 07 29.4 13.0 V 247
2021-07-21 15:06:01 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:06:40 V 19 53 06.11 -15 07 22.4 12.9 V 247
2021-07-21 15:06:40 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:07:20 V 19 53 06.25 -15 07 15.5 12.9 V 247
2021-07-21 15:07:20 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:08:00 V 19 53 06.37 -15 07 07.9 13.0 V 247
2021-07-21 15:08:00 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:08:39 V 19 53 06.47 -15 07 02.2 13.0 V 247
2021-07-21 15:08:39 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:09:19 V 19 53 06.55 -15 06 54.2 13.0 V 247
2021-07-21 15:09:19 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:09:59 V 19 53 06.68 -15 06 46.8 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)