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 17:02:09 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:02:48 V 19 53 25.57 -14 46 43.1 13.0 V 247
2021-07-21 17:02:48 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:03:28 V 19 53 25.69 -14 46 35.8 13.0 V 247
2021-07-21 17:03:28 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:04:08 V 19 53 25.79 -14 46 29.2 13.0 V 247
2021-07-21 17:04:08 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:04:47 V 19 53 25.92 -14 46 22.0 13.0 V 247
2021-07-21 17:04:47 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:05:27 V 19 53 26.03 -14 46 14.5 13.0 V 247
2021-07-21 17:05:27 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:06:07 V 19 53 26.14 -14 46 07.6 13.0 V 247
2021-07-21 17:06:07 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:06:47 V 19 53 26.25 -14 46 00.7 13.0 V 247
2021-07-21 17:06:47 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:07:26 V 19 53 26.37 -14 45 53.7 13.0 V 247
2021-07-21 17:07:26 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:08:06 V 19 53 26.49 -14 45 46.4 12.8 V 247
2021-07-21 17:08:06 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:08:46 V 19 53 26.60 -14 45 39.5 12.8 V 247
2021-07-21 17:08:46 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:09:25 V 19 53 26.71 -14 45 32.1 12.9 V 247
2021-07-21 17:09:25 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:10:05 V 19 53 26.85 -14 45 25.0 13.0 V 247
2021-07-21 17:10:05 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:10:45 V 19 53 26.95 -14 45 17.9 13.0 V 247
2021-07-21 17:10:45 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:11:25 V 19 53 27.06 -14 45 11.1 13.0 V 247
2021-07-21 17:11:25 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:12:04 V 19 53 27.19 -14 45 03.8 13.0 V 247
2021-07-21 17:12:04 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:12:44 V 19 53 27.29 -14 44 57.1 12.9 V 247
2021-07-21 17:12:44 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:13:24 V 19 53 27.41 -14 44 49.7 13.0 V 247
2021-07-21 17:13:24 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:14:03 V 19 53 27.54 -14 44 42.8 13.0 V 247
2021-07-21 17:14:03 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:14:43 V 19 53 27.64 -14 44 35.6 12.9 V 247
2021-07-21 17:14:43 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:15:23 V 19 53 27.78 -14 44 28.7 12.9 V 247
2021-07-21 17:15:23 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:16:34 V 19 53 27.94 -14 44 16.3 13.0 V 247
2021-07-21 17:16:34 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:18:14 V 19 53 28.27 -14 43 58.0 13.0 V 247
2021-07-21 17:18:14 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:18:53 V 19 53 28.39 -14 43 50.9 13.0 V 247
2021-07-21 17:18:53 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:19:33 V 19 53 28.49 -14 43 44.1 12.9 V 247
2021-07-21 17:19:33 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:20:13 V 19 53 28.62 -14 43 36.6 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)