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
2021-07-26 23:27:55 C 20 16 33.01 +06 24 13.0 – V L54
2021-07-26 23:58:52 C 20 16 37.37 +06 28 50.1 – V L54
2021-07-27 01:39:52 V 20 17 02.22 +06 44 16.7 13.9 V 247
2021-07-27 01:39:52 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:40:51 V 20 17 02.35 +06 44 24.1 13.8 V 247
2021-07-27 01:40:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:47:48 V 20 17 03.36 +06 45 27.3 13.8 V 247
2021-07-27 01:47:48 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:51:46 V 20 17 04.00 +06 46 03.1 14.2 V 247
2021-07-27 01:51:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:52:46 V 20 17 04.16 +06 46 12.1 13.6 V 247
2021-07-27 01:52:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:53:46 V 20 17 04.37 +06 46 21.1 13.6 V 247
2021-07-27 01:53:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:54:45 V 20 17 04.48 +06 46 28.5 13.5 V 247
2021-07-27 01:54:45 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:56:44 V 20 17 04.79 +06 46 46.7 13.9 V 247
2021-07-27 01:56:44 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:57:44 V 20 17 04.88 +06 46 55.7 13.7 V 247
2021-07-27 01:57:44 v 1 273.41734 +30.43474 – – 247
2021-07-27 01:59:43 V 20 17 05.19 +06 47 13.0 13.9 V 247
2021-07-27 01:59:43 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:01:42 V 20 17 05.40 +06 47 32.4 14.0 V 247
2021-07-27 02:01:42 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:02:42 V 20 17 05.61 +06 47 38.0 14.0 V 247
2021-07-27 02:02:42 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:03:41 V 20 17 05.73 +06 47 47.7 13.7 V 247
2021-07-27 02:03:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:04:41 V 20 17 05.92 +06 47 57.1 13.9 V 247
2021-07-27 02:04:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:05:40 V 20 17 06.04 +06 48 06.1 13.7 V 247
2021-07-27 02:05:40 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:06:40 V 20 17 06.18 +06 48 15.6 13.8 V 247
2021-07-27 02:06:40 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:07:39 V 20 17 06.35 +06 48 24.5 14.1 V 247
2021-07-27 02:07:39 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:16:53 V 20 17 07.60 +06 49 48.2 13.7 V 247
2021-07-27 02:16:53 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:17:52 V 20 17 07.75 +06 49 55.4 13.6 V 247
2021-07-27 02:17:52 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:18:52 V 20 17 07.96 +06 50 04.6 13.8 V 247
2021-07-27 02:18:52 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:20:51 V 20 17 08.25 +06 50 24.3 13.7 V 247
2021-07-27 02:20:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:21:51 V 20 17 08.36 +06 50 31.0 13.8 V 247
2021-07-27 02:21:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:22:50 V 20 17 08.54 +06 50 41.2 13.7 V 247
2021-07-27 02:22:50 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:23:50 V 20 17 08.75 +06 50 50.6 13.8 V 247
2021-07-27 02:23:50 v 1 273.41734 +30.43474 – – 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)