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
2021-07-19 15:47:39 V 19 43 11.76 -23 24 01.5 13.1 V 247
2021-07-19 15:47:39 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:48:19 V 19 43 11.89 -23 23 54.2 13.0 V 247
2021-07-19 15:48:19 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:48:59 V 19 43 12.00 -23 23 47.4 13.0 V 247
2021-07-19 15:48:59 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:49:38 V 19 43 12.11 -23 23 40.7 13.0 V 247
2021-07-19 15:49:38 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:50:18 V 19 43 12.24 -23 23 33.5 13.0 V 247
2021-07-19 15:50:18 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:50:58 V 19 43 12.36 -23 23 27.0 13.1 V 247
2021-07-19 15:50:58 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:51:37 V 19 43 12.42 -23 23 18.9 13.0 V 247
2021-07-19 15:51:37 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:52:17 V 19 43 12.56 -23 23 12.1 13.0 V 247
2021-07-19 15:52:17 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:57:36 V 19 43 13.46 -23 22 16.6 13.0 V 247
2021-07-19 15:57:36 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:58:15 V 19 43 13.61 -23 22 10.0 13.0 V 247
2021-07-19 15:58:15 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:58:55 V 19 43 13.71 -23 22 03.4 13.1 V 247
2021-07-19 15:58:55 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:59:35 V 19 43 13.84 -23 21 56.4 13.1 V 247
2021-07-19 15:59:35 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:01:34 V 19 43 14.20 -23 21 35.8 12.8 V 247
2021-07-19 16:01:34 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:04:53 V 19 43 14.84 -23 21 02.3 12.8 V 247
2021-07-19 16:04:53 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:05:32 V 19 43 14.96 -23 20 55.1 13.8 V 247
2021-07-19 16:05:32 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:06:12 V 19 43 15.08 -23 20 48.1 13.8 V 247
2021-07-19 16:06:12 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:06:52 V 19 43 15.22 -23 20 41.5 13.1 V 247
2021-07-19 16:06:52 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:07:31 V 19 43 15.33 -23 20 34.2 13.0 V 247
2021-07-19 16:07:31 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:08:11 V 19 43 15.48 -23 20 27.6 13.1 V 247
2021-07-19 16:08:11 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:08:51 V 19 43 15.61 -23 20 20.3 13.2 V 247
2021-07-19 16:08:51 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:09:31 V 19 43 15.70 -23 20 14.1 13.2 V 247
2021-07-19 16:09:31 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:10:10 V 19 43 15.81 -23 20 07.2 13.1 V 247
2021-07-19 16:10:10 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:10:50 V 19 43 15.94 -23 20 00.6 12.7 V 247
2021-07-19 16:10:50 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:11:30 V 19 43 16.18 -23 19 52.2 12.5 V 247
2021-07-19 16:11:30 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:12:09 V 19 43 16.20 -23 19 47.5 12.5 V 247
2021-07-19 16:12:09 v 1 135.36081 +35.05973 – – 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)