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 15:26:47 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:27:25 V 19 53 09.14 -15 03 40.2 12.9 V 247
2021-07-21 15:27:25 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:27:27 V 19 53 09.67 -15 03 40.7 12.8 V 247
2021-07-21 15:27:27 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:28:05 V 19 53 09.23 -15 03 34.0 12.8 V 247
2021-07-21 15:28:05 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:28:07 V 19 53 09.80 -15 03 33.9 12.7 V 247
2021-07-21 15:28:07 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:28:45 V 19 53 09.33 -15 03 27.4 12.9 V 247
2021-07-21 15:28:45 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:28:47 V 19 53 09.90 -15 03 27.0 12.7 V 247
2021-07-21 15:28:47 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:29:25 V 19 53 09.46 -15 03 20.4 12.9 V 247
2021-07-21 15:29:25 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:29:26 V 19 53 10.02 -15 03 19.8 13.0 V 247
2021-07-21 15:29:26 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:30:04 V 19 53 09.58 -15 03 13.2 13.0 V 247
2021-07-21 15:30:04 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:30:06 V 19 53 10.14 -15 03 13.1 13.0 V 247
2021-07-21 15:30:06 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:30:44 V 19 53 09.69 -15 03 05.8 13.1 V 247
2021-07-21 15:30:44 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:30:46 V 19 53 10.28 -15 03 06.0 12.9 V 247
2021-07-21 15:30:46 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:31:24 V 19 53 09.79 -15 02 58.9 13.1 V 247
2021-07-21 15:31:24 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:31:26 V 19 53 10.39 -15 02 58.8 13.0 V 247
2021-07-21 15:31:26 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:32:03 V 19 53 09.91 -15 02 51.7 13.0 V 247
2021-07-21 15:32:03 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:32:05 V 19 53 10.49 -15 02 51.7 13.0 V 247
2021-07-21 15:32:05 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:32:43 V 19 53 10.02 -15 02 45.3 13.0 V 247
2021-07-21 15:32:43 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:33:23 V 19 53 10.13 -15 02 37.8 13.1 V 247
2021-07-21 15:33:23 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:34:03 V 19 53 10.26 -15 02 30.7 13.3 V 247
2021-07-21 15:34:03 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:36:02 V 19 53 10.58 -15 02 09.5 13.2 V 247
2021-07-21 15:36:02 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:41:19 V 19 53 11.49 -15 01 13.5 13.1 V 247
2021-07-21 15:41:19 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:41:59 V 19 53 11.60 -15 01 06.1 13.3 V 247
2021-07-21 15:41:59 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:43:18 V 19 53 11.82 -15 00 52.4 13.3 V 247
2021-07-21 15:43:18 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:43:58 V 19 53 11.94 -15 00 44.8 12.9 V 247
2021-07-21 15:43:58 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:44:38 V 19 53 12.05 -15 00 38.2 12.7 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)