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
2021-07-25 04:09:13 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:09:52 V 20 09 14.95 -00 24 10.3 13.5 V 247
2021-07-25 04:09:52 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:10:32 V 20 09 15.07 -00 24 03.8 13.4 V 247
2021-07-25 04:10:32 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:11:12 V 20 09 15.12 -00 23 57.6 13.5 V 247
2021-07-25 04:11:12 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:11:52 V 20 09 15.23 -00 23 51.4 13.5 V 247
2021-07-25 04:11:52 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:12:31 V 20 09 15.33 -00 23 44.4 13.5 V 247
2021-07-25 04:12:31 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:13:11 V 20 09 15.45 -00 23 38.0 13.3 V 247
2021-07-25 04:13:11 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:13:51 V 20 09 15.54 -00 23 31.5 13.5 V 247
2021-07-25 04:13:51 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:14:30 V 20 09 15.64 -00 23 25.1 13.6 V 247
2021-07-25 04:14:30 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:15:10 V 20 09 15.71 -00 23 19.8 13.9 V 247
2021-07-25 04:15:10 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:15:50 V 20 09 15.83 -00 23 12.0 14.1 V 247
2021-07-25 04:15:50 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:16:30 V 20 09 15.94 -00 23 05.4 14.0 V 247
2021-07-25 04:16:30 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:17:09 V 20 09 16.04 -00 22 58.6 13.9 V 247
2021-07-25 04:17:09 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:17:49 V 20 09 16.09 -00 22 52.2 13.6 V 247
2021-07-25 04:17:49 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:18:29 V 20 09 16.20 -00 22 45.7 13.8 V 247
2021-07-25 04:18:29 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:19:08 V 20 09 16.33 -00 22 39.4 13.8 V 247
2021-07-25 04:19:08 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:19:48 V 20 09 16.42 -00 22 32.6 13.8 V 247
2021-07-25 04:19:48 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:20:28 V 20 09 16.47 -00 22 26.2 14.0 V 247
2021-07-25 04:20:28 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:21:08 V 20 09 16.61 -00 22 19.6 13.7 V 247
2021-07-25 04:21:08 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:21:47 V 20 09 16.71 -00 22 12.0 14.0 V 247
2021-07-25 04:21:47 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:22:27 V 20 09 16.84 -00 22 07.1 13.6 V 247
2021-07-25 04:22:27 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:23:07 V 20 09 16.91 -00 21 59.9 13.8 V 247
2021-07-25 04:23:07 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:23:46 V 20 09 16.99 -00 21 53.9 13.8 V 247
2021-07-25 04:23:46 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:24:26 V 20 09 17.10 -00 21 46.7 13.7 V 247
2021-07-25 04:24:26 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:25:06 V 20 09 17.21 -00 21 39.7 14.1 V 247
2021-07-25 04:25:06 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:25:46 V 20 09 17.26 -00 21 34.2 13.9 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)