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 16:05:07 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:05:09 V 19 53 15.54 -14 57 00.0 12.9 V 247
2021-07-21 16:05:09 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:05:46 V 19 53 16.17 -14 56 52.8 13.0 V 247
2021-07-21 16:05:46 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:05:49 V 19 53 15.68 -14 56 52.6 13.0 V 247
2021-07-21 16:05:49 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:06:26 V 19 53 16.30 -14 56 45.2 12.9 V 247
2021-07-21 16:06:26 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:06:28 V 19 53 15.78 -14 56 45.6 12.9 V 247
2021-07-21 16:06:28 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:07:06 V 19 53 16.39 -14 56 39.0 13.0 V 247
2021-07-21 16:07:06 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:07:45 V 19 53 16.51 -14 56 31.4 13.1 V 247
2021-07-21 16:07:45 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:08:25 V 19 53 16.64 -14 56 24.4 12.9 V 247
2021-07-21 16:08:25 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:09:05 V 19 53 16.73 -14 56 17.7 13.0 V 247
2021-07-21 16:09:05 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:09:45 V 19 53 16.86 -14 56 10.3 13.0 V 247
2021-07-21 16:09:45 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:11:04 V 19 53 17.08 -14 55 56.2 13.1 V 247
2021-07-21 16:11:04 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:11:44 V 19 53 17.19 -14 55 48.8 13.0 V 247
2021-07-21 16:11:44 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:12:23 V 19 53 17.31 -14 55 42.0 13.1 V 247
2021-07-21 16:12:23 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:12:31 V 19 53 16.84 -14 55 40.3 13.0 V 247
2021-07-21 16:12:31 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:13:03 V 19 53 17.43 -14 55 34.8 13.0 V 247
2021-07-21 16:13:03 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:13:11 V 19 53 16.94 -14 55 33.4 13.0 V 247
2021-07-21 16:13:11 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:13:43 V 19 53 17.55 -14 55 28.1 13.2 V 247
2021-07-21 16:13:43 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:13:50 V 19 53 17.05 -14 55 26.5 13.0 V 247
2021-07-21 16:13:50 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:14:23 V 19 53 17.66 -14 55 21.0 13.0 V 247
2021-07-21 16:14:23 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:14:30 V 19 53 17.17 -14 55 19.3 13.0 V 247
2021-07-21 16:14:30 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:15:02 V 19 53 17.79 -14 55 13.9 13.0 V 247
2021-07-21 16:15:02 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:15:10 V 19 53 17.28 -14 55 12.6 13.0 V 247
2021-07-21 16:15:10 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:15:42 V 19 53 17.87 -14 55 07.0 13.0 V 247
2021-07-21 16:15:42 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:15:49 V 19 53 17.40 -14 55 05.3 13.0 V 247
2021-07-21 16:15:49 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:16:22 V 19 53 18.01 -14 54 59.5 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)