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 03:08:33 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:09:13 V 20 09 05.85 -00 34 10.0 13.6 V 247
2021-07-25 03:09:13 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:09:53 V 20 09 05.98 -00 34 03.1 13.5 V 247
2021-07-25 03:09:53 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:16:43 V 20 09 07.00 -00 32 55.2 13.5 V 247
2021-07-25 03:16:43 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:17:23 V 20 09 07.08 -00 32 48.4 13.4 V 247
2021-07-25 03:17:23 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:18:03 V 20 09 07.23 -00 32 42.1 13.7 V 247
2021-07-25 03:18:03 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:18:42 V 20 09 07.29 -00 32 35.3 13.4 V 247
2021-07-25 03:18:42 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:19:22 V 20 09 07.39 -00 32 29.2 13.4 V 247
2021-07-25 03:19:22 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:20:02 V 20 09 07.50 -00 32 22.5 13.9 V 247
2021-07-25 03:20:02 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:20:42 V 20 09 07.61 -00 32 16.3 13.6 V 247
2021-07-25 03:20:42 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:21:21 V 20 09 07.70 -00 32 09.6 13.5 V 247
2021-07-25 03:21:21 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:22:01 V 20 09 07.82 -00 32 03.6 13.6 V 247
2021-07-25 03:22:01 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:22:41 V 20 09 07.88 -00 31 56.4 13.6 V 247
2021-07-25 03:22:41 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:23:20 V 20 09 07.99 -00 31 49.8 13.5 V 247
2021-07-25 03:23:20 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:24:00 V 20 09 08.10 -00 31 43.2 13.4 V 247
2021-07-25 03:24:00 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:24:40 V 20 09 08.20 -00 31 37.3 13.7 V 247
2021-07-25 03:24:40 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:25:20 V 20 09 08.27 -00 31 30.3 13.4 V 247
2021-07-25 03:25:20 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:25:59 V 20 09 08.38 -00 31 23.4 13.5 V 247
2021-07-25 03:25:59 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:26:39 V 20 09 08.51 -00 31 17.1 13.4 V 247
2021-07-25 03:26:39 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:27:19 V 20 09 08.62 -00 31 10.9 13.8 V 247
2021-07-25 03:27:19 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:27:58 V 20 09 08.70 -00 31 04.4 13.2 V 247
2021-07-25 03:27:58 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:28:38 V 20 09 08.76 -00 30 57.9 13.4 V 247
2021-07-25 03:28:38 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:29:18 V 20 09 08.92 -00 30 51.4 13.7 V 247
2021-07-25 03:29:18 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:29:57 V 20 09 09.01 -00 30 44.3 13.8 V 247
2021-07-25 03:29:57 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:30:37 V 20 09 09.11 -00 30 37.8 13.7 V 247
2021-07-25 03:30:37 v 1 273.41716 +30.43474 – – 247
2021-07-25 03:31:17 V 20 09 09.21 -00 30 31.5 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)