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
2021-07-21 06:25:03 V 19 51 23.31 -16 39 37.6 13.1 V 247
2021-07-21 06:25:03 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:27:02 V 19 51 23.65 -16 39 16.2 13.0 V 247
2021-07-21 06:27:02 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:27:42 V 19 51 23.75 -16 39 08.9 12.9 V 247
2021-07-21 06:27:42 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:28:21 V 19 51 23.93 -16 39 02.2 12.9 V 247
2021-07-21 06:28:21 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:29:01 V 19 51 24.05 -16 38 54.6 13.0 V 247
2021-07-21 06:29:01 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:30:21 V 19 51 24.24 -16 38 41.7 13.1 V 247
2021-07-21 06:30:21 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:32:20 V 19 51 24.65 -16 38 19.0 13.1 V 247
2021-07-21 06:32:20 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:32:59 V 19 51 24.69 -16 38 12.7 13.0 V 247
2021-07-21 06:32:59 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:35:38 V 19 51 25.19 -16 37 44.7 13.1 V 247
2021-07-21 06:35:38 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:36:18 V 19 51 25.30 -16 37 38.0 13.0 V 247
2021-07-21 06:36:18 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:37:37 V 19 51 25.52 -16 37 24.1 13.1 V 247
2021-07-21 06:37:37 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:38:17 V 19 51 25.63 -16 37 17.8 13.0 V 247
2021-07-21 06:38:17 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:38:57 V 19 51 25.78 -16 37 10.6 13.0 V 247
2021-07-21 06:38:57 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:39:37 V 19 51 25.86 -16 37 03.7 13.1 V 247
2021-07-21 06:39:37 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:48:34 C 19 51 23.93 -16 35 37.2 – V V93
2021-07-21 06:59:11 V 19 51 29.23 -16 33 36.7 13.0 V 247
2021-07-21 06:59:11 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:59:51 V 19 51 29.38 -16 33 28.6 13.1 V 247
2021-07-21 06:59:51 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:00:30 V 19 51 29.44 -16 33 21.9 12.9 V 247
2021-07-21 07:00:30 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:01:10 V 19 51 29.58 -16 33 15.5 13.0 V 247
2021-07-21 07:01:10 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:02:29 V 19 51 29.83 -16 33 01.7 13.2 V 247
2021-07-21 07:02:29 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:03:09 V 19 51 29.93 -16 32 51.6 13.1 V 247
2021-07-21 07:03:09 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:03:49 V 19 51 30.04 -16 32 46.9 13.1 V 247
2021-07-21 07:03:49 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:04:29 V 19 51 30.12 -16 32 40.4 13.1 V 247
2021-07-21 07:04:29 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:05:08 V 19 51 30.25 -16 32 33.8 12.9 V 247
2021-07-21 07:05:08 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:05:48 V 19 51 30.37 -16 32 26.7 13.1 V 247
2021-07-21 07:05:48 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:06:28 V 19 51 30.48 -16 32 19.7 13.0 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)