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
2021-07-07 17:59:25 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:00:24 V 18 32 04.67 -57 23 48.7 14.9 V 247
2021-07-07 18:00:24 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:01:24 V 18 32 04.89 -57 23 44.9 14.9 V 247
2021-07-07 18:01:24 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:02:23 V 18 32 05.12 -57 23 41.1 14.9 V 247
2021-07-07 18:02:23 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:03:23 V 18 32 05.36 -57 23 37.2 15.1 V 247
2021-07-07 18:03:23 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:04:22 V 18 32 05.59 -57 23 33.6 15.0 V 247
2021-07-07 18:04:22 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:05:22 V 18 32 05.78 -57 23 29.8 15.0 V 247
2021-07-07 18:05:22 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:06:21 V 18 32 06.04 -57 23 25.6 14.9 V 247
2021-07-07 18:06:21 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:07:21 V 18 32 06.26 -57 23 21.9 14.9 V 247
2021-07-07 18:07:21 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:08:21 V 18 32 06.52 -57 23 17.9 15.1 V 247
2021-07-07 18:08:21 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:09:20 V 18 32 06.72 -57 23 14.7 15.0 V 247
2021-07-07 18:09:20 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:10:20 V 18 32 06.98 -57 23 10.3 15.1 V 247
2021-07-07 18:10:20 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:11:19 V 18 32 07.21 -57 23 06.8 15.0 V 247
2021-07-07 18:11:19 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:12:19 V 18 32 07.43 -57 23 02.8 15.0 V 247
2021-07-07 18:12:19 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:13:18 V 18 32 07.62 -57 22 59.1 15.1 V 247
2021-07-07 18:13:18 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:14:18 V 18 32 07.88 -57 22 55.3 15.4 V 247
2021-07-07 18:14:18 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:25:11 V 18 32 10.33 -57 22 13.0 15.0 V 247
2021-07-07 18:25:11 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:26:10 V 18 32 10.58 -57 22 09.5 15.1 V 247
2021-07-07 18:26:10 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:27:10 V 18 32 10.80 -57 22 05.8 15.0 V 247
2021-07-07 18:27:10 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:28:10 V 18 32 11.06 -57 22 01.5 14.9 V 247
2021-07-07 18:28:10 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:29:09 V 18 32 11.28 -57 21 57.6 15.0 V 247
2021-07-07 18:29:09 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:30:09 V 18 32 11.52 -57 21 53.6 15.0 V 247
2021-07-07 18:30:09 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:31:08 V 18 32 11.73 -57 21 50.1 14.9 V 247
2021-07-07 18:31:08 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:32:08 V 18 32 11.97 -57 21 46.3 14.9 V 247
2021-07-07 18:32:08 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:33:07 V 18 32 12.20 -57 21 42.2 15.0 V 247
2021-07-07 18:33:07 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:34:07 V 18 32 12.39 -57 21 38.3 15.0 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)