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
2021-07-06 07:40:21 S 18 22 54.38 -59 30 05.6 – g C59
2021-07-07 17:35:35 V 18 31 58.91 -57 25 23.7 15.0 V 247
2021-07-07 17:35:35 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:36:34 V 18 31 59.14 -57 25 20.1 14.8 V 247
2021-07-07 17:36:34 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:37:34 V 18 31 59.34 -57 25 16.2 14.8 V 247
2021-07-07 17:37:34 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:38:34 V 18 31 59.60 -57 25 12.2 15.0 V 247
2021-07-07 17:38:34 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:39:33 V 18 31 59.85 -57 25 08.5 14.9 V 247
2021-07-07 17:39:33 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:40:33 V 18 32 00.04 -57 25 04.8 14.9 V 247
2021-07-07 17:40:33 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:41:32 V 18 32 00.31 -57 25 00.9 15.0 V 247
2021-07-07 17:41:32 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:42:32 V 18 32 00.55 -57 24 57.1 15.1 V 247
2021-07-07 17:42:32 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:43:31 V 18 32 00.78 -57 24 53.2 15.0 V 247
2021-07-07 17:43:31 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:44:31 V 18 32 00.97 -57 24 49.5 14.9 V 247
2021-07-07 17:44:31 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:45:31 V 18 32 01.22 -57 24 45.8 14.9 V 247
2021-07-07 17:45:31 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:46:30 V 18 32 01.47 -57 24 41.8 15.0 V 247
2021-07-07 17:46:30 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:47:30 V 18 32 01.71 -57 24 37.8 14.9 V 247
2021-07-07 17:47:30 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:48:29 V 18 32 01.94 -57 24 34.3 14.8 V 247
2021-07-07 17:48:29 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:49:29 V 18 32 02.17 -57 24 30.5 14.9 V 247
2021-07-07 17:49:29 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:50:28 V 18 32 02.39 -57 24 26.5 15.1 V 247
2021-07-07 17:50:28 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:51:28 V 18 32 02.60 -57 24 22.7 15.0 V 247
2021-07-07 17:51:28 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:52:28 V 18 32 02.79 -57 24 19.0 14.9 V 247
2021-07-07 17:52:28 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:53:27 V 18 32 02.94 -57 24 14.9 15.0 V 247
2021-07-07 17:53:27 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:54:27 V 18 32 03.25 -57 24 11.7 14.8 V 247
2021-07-07 17:54:27 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:55:26 V 18 32 03.51 -57 24 07.9 15.0 V 247
2021-07-07 17:55:26 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:56:26 V 18 32 03.75 -57 24 04.1 15.1 V 247
2021-07-07 17:56:26 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:57:25 V 18 32 03.97 -57 24 00.3 14.9 V 247
2021-07-07 17:57:25 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:58:25 V 18 32 04.24 -57 23 56.5 15.0 V 247
2021-07-07 17:58:25 v 1 055.57633 -21.19304 – – 247
2021-07-07 17:59:25 V 18 32 04.46 -57 23 52.9 14.9 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)