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 02:47:07 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:47:47 V 20 09 02.60 -00 37 41.4 13.4 V 247
2021-07-25 02:47:47 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:48:26 V 20 09 02.67 -00 37 34.6 13.8 V 247
2021-07-25 02:48:26 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:49:06 V 20 09 02.76 -00 37 28.1 13.7 V 247
2021-07-25 02:49:06 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:49:46 V 20 09 02.90 -00 37 21.1 13.7 V 247
2021-07-25 02:49:46 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:50:25 V 20 09 02.97 -00 37 14.7 13.6 V 247
2021-07-25 02:50:25 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:51:05 V 20 09 03.08 -00 37 08.7 13.3 V 247
2021-07-25 02:51:05 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:51:45 V 20 09 03.20 -00 37 01.8 13.4 V 247
2021-07-25 02:51:45 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:52:27 V 20 09 03.33 -00 36 55.2 13.3 V 247
2021-07-25 02:52:27 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:53:08 V 20 09 03.41 -00 36 48.2 13.6 V 247
2021-07-25 02:53:08 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:53:48 V 20 09 03.55 -00 36 41.4 14.0 V 247
2021-07-25 02:53:48 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:54:28 V 20 09 03.60 -00 36 35.3 13.8 V 247
2021-07-25 02:54:28 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:55:07 V 20 09 03.69 -00 36 28.7 13.7 V 247
2021-07-25 02:55:07 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:55:47 V 20 09 03.82 -00 36 22.8 13.9 V 247
2021-07-25 02:55:47 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:56:27 V 20 09 03.93 -00 36 15.3 13.3 V 247
2021-07-25 02:56:27 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:57:54 V 20 09 04.11 -00 36 01.4 13.9 V 247
2021-07-25 02:57:54 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:00:37 V 20 09 04.54 -00 35 34.2 13.3 V 247
2021-07-25 03:00:37 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:01:56 V 20 09 04.78 -00 35 21.5 13.6 V 247
2021-07-25 03:01:56 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:02:36 V 20 09 04.84 -00 35 15.4 13.7 V 247
2021-07-25 03:02:36 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:03:16 V 20 09 04.98 -00 35 08.4 13.7 V 247
2021-07-25 03:03:16 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:03:56 V 20 09 04.97 -00 35 00.7 14.2 V 247
2021-07-25 03:03:56 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:05:55 V 20 09 05.38 -00 34 40.7 13.8 V 247
2021-07-25 03:05:55 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:06:34 V 20 09 05.52 -00 34 35.8 13.7 V 247
2021-07-25 03:06:34 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:07:14 V 20 09 05.60 -00 34 29.0 13.4 V 247
2021-07-25 03:07:14 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:07:54 V 20 09 05.74 -00 34 22.5 13.4 V 247
2021-07-25 03:07:54 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:08:33 V 20 09 05.78 -00 34 16.4 13.4 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)