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 18:34:07 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:35:07 V 18 32 12.66 -57 21 34.6 14.9 V 247
2021-07-07 18:35:07 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:36:06 V 18 32 12.84 -57 21 30.7 15.0 V 247
2021-07-07 18:36:06 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:37:06 V 18 32 13.08 -57 21 26.5 15.0 V 247
2021-07-07 18:37:06 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:38:05 V 18 32 13.30 -57 21 23.0 15.1 V 247
2021-07-07 18:38:05 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:42:04 V 18 32 14.26 -57 21 08.2 15.0 V 247
2021-07-07 18:42:04 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:43:03 V 18 32 14.49 -57 21 03.4 14.7 V 247
2021-07-07 18:43:03 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:44:03 V 18 32 14.72 -57 20 59.1 15.2 V 247
2021-07-07 18:44:03 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:45:02 V 18 32 14.90 -57 20 56.8 15.0 V 247
2021-07-07 18:45:02 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:46:02 V 18 32 15.10 -57 20 53.2 15.5 V 247
2021-07-07 18:46:02 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:48:01 V 18 32 15.60 -57 20 44.5 15.1 V 247
2021-07-07 18:48:01 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:50:00 V 18 32 16.06 -57 20 37.0 15.0 V 247
2021-07-07 18:50:00 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:51:00 V 18 32 16.28 -57 20 33.1 15.2 V 247
2021-07-07 18:51:00 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:51:59 V 18 32 16.57 -57 20 29.6 15.2 V 247
2021-07-07 18:51:59 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:52:59 V 18 32 16.77 -57 20 25.0 15.1 V 247
2021-07-07 18:52:59 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:53:58 V 18 32 16.98 -57 20 21.1 14.9 V 247
2021-07-07 18:53:58 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:54:58 V 18 32 17.16 -57 20 17.4 14.9 V 247
2021-07-07 18:54:58 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:55:57 V 18 32 17.44 -57 20 13.2 15.1 V 247
2021-07-07 18:55:57 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:56:57 V 18 32 17.67 -57 20 10.1 15.2 V 247
2021-07-07 18:56:57 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:57:57 V 18 32 17.84 -57 20 05.2 15.1 V 247
2021-07-07 18:57:57 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:58:56 V 18 32 18.09 -57 20 01.9 15.0 V 247
2021-07-07 18:58:56 v 1 055.57633 -21.19304 – – 247
2021-07-07 18:59:56 V 18 32 18.33 -57 19 57.9 15.2 V 247
2021-07-07 18:59:56 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:00:55 V 18 32 18.52 -57 19 54.2 14.9 V 247
2021-07-07 19:00:55 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:02:54 V 18 32 19.00 -57 19 46.3 15.1 V 247
2021-07-07 19:02:54 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:19:07 V 18 32 22.57 -57 18 41.8 14.8 V 247
2021-07-07 19:19:07 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:20:07 V 18 32 22.82 -57 18 37.7 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)