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 19:20:07 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:21:07 V 18 32 23.07 -57 18 33.9 14.9 V 247
2021-07-07 19:21:07 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:22:06 V 18 32 23.30 -57 18 29.6 15.0 V 247
2021-07-07 19:22:06 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:23:06 V 18 32 23.53 -57 18 26.0 15.0 V 247
2021-07-07 19:23:06 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:24:05 V 18 32 23.71 -57 18 21.9 15.0 V 247
2021-07-07 19:24:05 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:25:05 V 18 32 23.99 -57 18 17.8 15.2 V 247
2021-07-07 19:25:05 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:26:04 V 18 32 24.19 -57 18 14.2 15.1 V 247
2021-07-07 19:26:04 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:27:04 V 18 32 24.35 -57 18 09.6 15.0 V 247
2021-07-07 19:27:04 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:28:04 V 18 32 24.60 -57 18 06.3 15.0 V 247
2021-07-07 19:28:04 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:29:03 V 18 32 24.83 -57 18 02.5 14.9 V 247
2021-07-07 19:29:03 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:30:03 V 18 32 25.03 -57 17 58.7 14.9 V 247
2021-07-07 19:30:03 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:31:02 V 18 32 25.27 -57 17 54.6 14.9 V 247
2021-07-07 19:31:02 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:32:02 V 18 32 25.51 -57 17 51.0 14.9 V 247
2021-07-07 19:32:02 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:33:01 V 18 32 25.69 -57 17 46.8 15.0 V 247
2021-07-07 19:33:01 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:34:01 V 18 32 25.94 -57 17 42.8 14.9 V 247
2021-07-07 19:34:01 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:35:01 V 18 32 26.16 -57 17 39.1 14.9 V 247
2021-07-07 19:35:01 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:36:00 V 18 32 26.40 -57 17 35.0 15.0 V 247
2021-07-07 19:36:00 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:37:00 V 18 32 26.64 -57 17 30.9 14.8 V 247
2021-07-07 19:37:00 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:37:59 V 18 32 26.86 -57 17 26.8 15.0 V 247
2021-07-07 19:37:59 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:38:59 V 18 32 27.08 -57 17 23.3 14.9 V 247
2021-07-07 19:38:59 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:39:58 V 18 32 27.30 -57 17 18.8 15.0 V 247
2021-07-07 19:39:58 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:40:58 V 18 32 27.52 -57 17 15.3 14.9 V 247
2021-07-07 19:40:58 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:41:57 V 18 32 27.75 -57 17 11.1 14.9 V 247
2021-07-07 19:41:57 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:42:57 V 18 32 27.97 -57 17 07.3 14.9 V 247
2021-07-07 19:42:57 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:43:57 V 18 32 28.15 -57 17 03.1 15.0 V 247
2021-07-07 19:43:57 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:44:56 V 18 32 28.40 -57 16 59.6 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)