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 15:56:30 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:56:33 V 19 53 14.07 -14 58 31.8 13.0 V 247
2021-07-21 15:56:33 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:57:10 V 19 53 14.71 -14 58 24.5 13.1 V 247
2021-07-21 15:57:10 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:57:12 V 19 53 14.20 -14 58 24.3 13.1 V 247
2021-07-21 15:57:12 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:57:50 V 19 53 14.80 -14 58 17.9 13.3 V 247
2021-07-21 15:57:50 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:57:52 V 19 53 14.31 -14 58 17.1 13.1 V 247
2021-07-21 15:57:52 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:58:30 V 19 53 14.94 -14 58 09.6 13.2 V 247
2021-07-21 15:58:30 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:58:32 V 19 53 14.43 -14 58 10.4 13.0 V 247
2021-07-21 15:58:32 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:59:09 V 19 53 15.05 -14 58 03.8 13.0 V 247
2021-07-21 15:59:09 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:59:11 V 19 53 14.53 -14 58 03.2 13.1 V 247
2021-07-21 15:59:11 v 1 139.83805 +35.03755 – – 247
2021-07-21 15:59:49 V 19 53 15.16 -14 57 56.1 13.0 V 247
2021-07-21 15:59:49 v 1 135.50856 +34.81760 – – 247
2021-07-21 15:59:51 V 19 53 14.65 -14 57 56.2 13.1 V 247
2021-07-21 15:59:51 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:00:29 V 19 53 15.27 -14 57 49.0 13.0 V 247
2021-07-21 16:00:29 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:00:31 V 19 53 14.76 -14 57 49.4 13.1 V 247
2021-07-21 16:00:31 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:01:08 V 19 53 15.40 -14 57 42.2 13.2 V 247
2021-07-21 16:01:08 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:01:11 V 19 53 14.88 -14 57 42.3 13.0 V 247
2021-07-21 16:01:11 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:01:48 V 19 53 15.51 -14 57 34.5 13.0 V 247
2021-07-21 16:01:48 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:02:28 V 19 53 15.61 -14 57 27.7 13.0 V 247
2021-07-21 16:02:28 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:02:30 V 19 53 15.10 -14 57 28.3 13.2 V 247
2021-07-21 16:02:30 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:03:08 V 19 53 15.74 -14 57 20.3 12.9 V 247
2021-07-21 16:03:08 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:03:10 V 19 53 15.21 -14 57 21.0 13.0 V 247
2021-07-21 16:03:10 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:03:47 V 19 53 15.84 -14 57 13.3 13.1 V 247
2021-07-21 16:03:47 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:03:50 V 19 53 15.34 -14 57 13.9 13.1 V 247
2021-07-21 16:03:50 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:04:27 V 19 53 15.93 -14 57 06.8 13.1 V 247
2021-07-21 16:04:27 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:04:29 V 19 53 15.43 -14 57 07.0 13.0 V 247
2021-07-21 16:04:29 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:05:07 V 19 53 16.06 -14 56 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)