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
2021-07-27 02:31:46 V 20 17 09.88 +06 51 58.7 13.9 V 247
2021-07-27 02:31:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:34:45 V 20 17 10.28 +06 52 26.7 13.8 V 247
2021-07-27 02:34:45 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:37:44 V 20 17 10.73 +06 52 52.6 13.9 V 247
2021-07-27 02:37:44 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:38:43 V 20 17 10.75 +06 53 01.3 14.2 V 247
2021-07-27 02:38:43 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:39:43 V 20 17 10.89 +06 53 10.1 14.1 V 247
2021-07-27 02:39:43 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:42:42 V 20 17 11.44 +06 53 37.3 13.7 V 247
2021-07-27 02:42:42 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:43:41 V 20 17 11.50 +06 53 46.0 13.7 V 247
2021-07-27 02:43:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:44:41 V 20 17 11.59 +06 53 55.1 13.7 V 247
2021-07-27 02:44:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:50:38 V 20 17 12.56 +06 54 48.1 13.7 V 247
2021-07-27 02:50:38 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:51:38 V 20 17 12.65 +06 54 56.9 13.8 V 247
2021-07-27 02:51:38 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:56:37 V 20 17 13.32 +06 55 42.5 14.0 V 247
2021-07-27 02:56:37 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:57:36 V 20 17 13.43 +06 55 52.0 14.0 V 247
2021-07-27 02:57:36 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:58:36 V 20 17 13.58 +06 56 00.0 14.5 V 247
2021-07-27 02:58:36 v 1 273.41734 +30.43474 – – 247
2021-07-27 02:59:35 V 20 17 13.73 +06 56 07.9 14.4 V 247
2021-07-27 02:59:35 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:00:35 V 20 17 13.89 +06 56 18.1 14.2 V 247
2021-07-27 03:00:35 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:01:35 V 20 17 14.00 +06 56 25.8 14.0 V 247
2021-07-27 03:01:35 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:03:34 V 20 17 14.29 +06 56 43.9 13.8 V 247
2021-07-27 03:03:34 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:04:33 V 20 17 14.46 +06 56 53.2 14.3 V 247
2021-07-27 03:04:33 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:06:32 V 20 17 14.69 +06 57 10.9 13.8 V 247
2021-07-27 03:06:32 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:07:34 V 20 17 14.81 +06 57 20.0 13.8 V 247
2021-07-27 03:07:34 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:08:36 V 20 17 14.97 +06 57 29.1 14.0 V 247
2021-07-27 03:08:36 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:09:35 V 20 17 15.12 +06 57 37.0 13.8 V 247
2021-07-27 03:09:35 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:10:35 V 20 17 15.25 +06 57 46.7 13.9 V 247
2021-07-27 03:10:35 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:12:34 V 20 17 15.47 +06 58 04.0 13.9 V 247
2021-07-27 03:12:34 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:13:33 V 20 17 15.63 +06 58 12.3 13.9 V 247
2021-07-27 03:13:33 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)