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 03:16:32 V 20 17 16.02 +06 58 39.3 14.0 V 247
2021-07-27 03:16:32 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:19:31 V 20 17 16.45 +06 59 05.9 13.8 V 247
2021-07-27 03:19:31 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:22:29 V 20 17 16.82 +06 59 32.8 13.8 V 247
2021-07-27 03:22:29 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:23:29 V 20 17 17.00 +06 59 42.9 13.9 V 247
2021-07-27 03:23:29 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:27:27 V 20 17 17.52 +07 00 16.4 13.6 V 247
2021-07-27 03:27:27 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:29:26 V 20 17 17.78 +07 00 35.1 13.6 V 247
2021-07-27 03:29:26 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:32:25 V 20 17 18.20 +07 01 01.2 13.8 V 247
2021-07-27 03:32:25 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:33:25 V 20 17 18.32 +07 01 10.2 14.2 V 247
2021-07-27 03:33:25 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:39:51 V 20 17 19.30 +07 02 06.3 13.4 V 247
2021-07-27 03:39:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:41:50 V 20 17 19.59 +07 02 24.5 14.0 V 247
2021-07-27 03:41:50 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:42:50 V 20 17 19.71 +07 02 34.7 13.8 V 247
2021-07-27 03:42:50 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:43:49 V 20 17 19.91 +07 02 42.8 13.9 V 247
2021-07-27 03:43:49 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:44:49 V 20 17 19.89 +07 02 51.3 13.8 V 247
2021-07-27 03:44:49 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:45:48 V 20 17 20.11 +07 02 59.8 13.8 V 247
2021-07-27 03:45:48 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:46:48 V 20 17 20.28 +07 03 10.3 13.9 V 247
2021-07-27 03:46:48 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:49:47 V 20 17 20.67 +07 03 37.1 13.9 V 247
2021-07-27 03:49:47 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:50:46 V 20 17 20.82 +07 03 43.8 13.7 V 247
2021-07-27 03:50:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:51:46 V 20 17 20.86 +07 03 53.8 13.7 V 247
2021-07-27 03:51:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 03:59:42 V 20 17 21.95 +07 05 04.7 13.8 V 247
2021-07-27 03:59:42 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:00:42 V 20 17 22.12 +07 05 11.8 13.7 V 247
2021-07-27 04:00:42 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:01:41 V 20 17 22.31 +07 05 22.8 13.6 V 247
2021-07-27 04:01:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:02:41 V 20 17 22.37 +07 05 30.3 13.7 V 247
2021-07-27 04:02:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:04:40 V 20 17 22.67 +07 05 48.4 13.8 V 247
2021-07-27 04:04:40 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:05:40 V 20 17 22.83 +07 05 58.1 13.7 V 247
2021-07-27 04:05:40 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:06:39 V 20 17 22.96 +07 06 07.5 13.8 V 247
2021-07-27 04:06:39 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)