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 03:31:17 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:31:57 V 20 09 09.30 -00 30 24.1 13.5 V 247
2021-07-25 03:31:57 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:33:16 V 20 09 09.49 -00 30 10.8 13.5 V 247
2021-07-25 03:33:16 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:34:35 V 20 09 09.66 -00 29 59.3 13.0 V 247
2021-07-25 03:34:35 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:35:15 V 20 09 09.80 -00 29 52.2 13.6 V 247
2021-07-25 03:35:15 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:35:55 V 20 09 09.92 -00 29 45.7 13.9 V 247
2021-07-25 03:35:55 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:37:14 V 20 09 10.12 -00 29 33.2 13.6 V 247
2021-07-25 03:37:14 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:37:54 V 20 09 10.19 -00 29 26.1 13.4 V 247
2021-07-25 03:37:54 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:38:34 V 20 09 10.30 -00 29 19.1 13.6 V 247
2021-07-25 03:38:34 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:39:13 V 20 09 10.38 -00 29 12.8 13.5 V 247
2021-07-25 03:39:13 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:39:53 V 20 09 10.48 -00 29 06.4 13.5 V 247
2021-07-25 03:39:53 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:40:33 V 20 09 10.58 -00 29 00.6 13.6 V 247
2021-07-25 03:40:33 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:41:13 V 20 09 10.68 -00 28 54.0 13.3 V 247
2021-07-25 03:41:13 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:41:52 V 20 09 10.78 -00 28 47.3 13.2 V 247
2021-07-25 03:41:52 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:42:32 V 20 09 10.87 -00 28 41.0 13.3 V 247
2021-07-25 03:42:32 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:43:12 V 20 09 10.98 -00 28 33.8 13.2 V 247
2021-07-25 03:43:12 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:43:51 V 20 09 11.12 -00 28 27.3 13.2 V 247
2021-07-25 03:43:51 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:44:31 V 20 09 11.21 -00 28 21.3 13.3 V 247
2021-07-25 03:44:31 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:45:11 V 20 09 11.30 -00 28 14.6 13.2 V 247
2021-07-25 03:45:11 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:45:51 V 20 09 11.39 -00 28 08.0 13.3 V 247
2021-07-25 03:45:51 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:46:30 V 20 09 11.53 -00 28 01.1 13.4 V 247
2021-07-25 03:46:30 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:47:10 V 20 09 11.60 -00 27 54.3 13.6 V 247
2021-07-25 03:47:10 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:47:50 V 20 09 11.70 -00 27 48.1 13.7 V 247
2021-07-25 03:47:50 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:48:29 V 20 09 11.78 -00 27 41.8 13.6 V 247
2021-07-25 03:48:29 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:49:09 V 20 09 11.87 -00 27 35.5 13.3 V 247
2021-07-25 03:49:09 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:49:49 V 20 09 11.99 -00 27 28.5 14.0 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)