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 16:24:26 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:24:58 V 19 53 19.51 -14 53 28.0 13.1 V 247
2021-07-21 16:24:58 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:25:05 V 19 53 19.00 -14 53 26.2 13.0 V 247
2021-07-21 16:25:05 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:25:38 V 19 53 19.60 -14 53 20.8 13.0 V 247
2021-07-21 16:25:38 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:25:45 V 19 53 19.12 -14 53 19.1 13.0 V 247
2021-07-21 16:25:45 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:26:17 V 19 53 19.73 -14 53 14.0 13.1 V 247
2021-07-21 16:26:17 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:26:25 V 19 53 19.22 -14 53 12.2 12.9 V 247
2021-07-21 16:26:25 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:26:57 V 19 53 19.86 -14 53 06.6 12.9 V 247
2021-07-21 16:26:57 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:27:05 V 19 53 19.33 -14 53 05.0 13.0 V 247
2021-07-21 16:27:05 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:27:37 V 19 53 19.97 -14 52 59.6 12.8 V 247
2021-07-21 16:27:37 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:27:44 V 19 53 19.46 -14 52 58.1 12.9 V 247
2021-07-21 16:27:44 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:28:17 V 19 53 20.08 -14 52 52.4 13.0 V 247
2021-07-21 16:28:17 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:28:24 V 19 53 19.57 -14 52 51.2 13.0 V 247
2021-07-21 16:28:24 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:28:56 V 19 53 20.19 -14 52 45.2 12.8 V 247
2021-07-21 16:28:56 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:29:04 V 19 53 19.70 -14 52 43.8 13.0 V 247
2021-07-21 16:29:04 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:29:36 V 19 53 20.30 -14 52 38.5 13.0 V 247
2021-07-21 16:29:36 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:29:43 V 19 53 19.81 -14 52 37.0 12.9 V 247
2021-07-21 16:29:43 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:30:23 V 19 53 19.90 -14 52 30.1 12.9 V 247
2021-07-21 16:30:23 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:31:03 V 19 53 20.02 -14 52 22.7 13.0 V 247
2021-07-21 16:31:03 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:31:43 V 19 53 20.14 -14 52 15.7 12.9 V 247
2021-07-21 16:31:43 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:32:22 V 19 53 20.24 -14 52 08.7 12.9 V 247
2021-07-21 16:32:22 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:33:02 V 19 53 20.37 -14 52 01.6 12.9 V 247
2021-07-21 16:33:02 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:33:42 V 19 53 20.46 -14 51 54.5 12.9 V 247
2021-07-21 16:33:42 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:34:21 V 19 53 20.59 -14 51 47.6 12.8 V 247
2021-07-21 16:34:21 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:35:01 V 19 53 20.72 -14 51 40.4 12.9 V 247
2021-07-21 16:35:01 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:35:41 V 19 53 20.83 -14 51 33.4 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)