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 07:06:28 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:09:46 V 19 51 31.02 -16 31 44.8 13.0 V 247
2021-07-21 07:09:46 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:10:26 V 19 51 31.13 -16 31 37.9 12.9 V 247
2021-07-21 07:10:26 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:13:05 V 19 51 31.63 -16 31 08.6 12.9 V 247
2021-07-21 07:13:05 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:13:44 V 19 51 31.74 -16 31 02.9 13.0 V 247
2021-07-21 07:13:44 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:14:24 V 19 51 31.81 -16 30 55.5 13.0 V 247
2021-07-21 07:14:24 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:15:04 V 19 51 31.95 -16 30 48.1 13.1 V 247
2021-07-21 07:15:04 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:15:44 V 19 51 32.05 -16 30 41.1 12.9 V 247
2021-07-21 07:15:44 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:16:23 V 19 51 32.35 -16 30 32.3 12.8 V 247
2021-07-21 07:16:23 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:17:03 V 19 51 32.32 -16 30 26.9 12.9 V 247
2021-07-21 07:17:03 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:17:43 V 19 51 32.39 -16 30 20.2 12.7 V 247
2021-07-21 07:17:43 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:18:23 V 19 51 32.55 -16 30 13.2 12.9 V 247
2021-07-21 07:18:23 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:19:02 V 19 51 32.64 -16 30 06.2 12.9 V 247
2021-07-21 07:19:02 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:19:42 V 19 51 32.75 -16 29 59.8 12.9 V 247
2021-07-21 07:19:42 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:20:22 V 19 51 32.85 -16 29 52.8 12.9 V 247
2021-07-21 07:20:22 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:21:01 V 19 51 32.96 -16 29 45.6 13.0 V 247
2021-07-21 07:21:01 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:21:41 V 19 51 33.10 -16 29 38.4 13.1 V 247
2021-07-21 07:21:41 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:26:59 V 19 51 34.11 -16 28 41.3 13.0 V 247
2021-07-21 07:26:59 v 1 240.91437 +34.23800 – – 247
2021-07-21 07:28:18 V 19 51 34.24 -16 28 28.6 12.9 V 247
2021-07-21 07:28:18 v 1 240.91437 +34.23800 – – 247
2021-07-21 09:39:46 C 19 52 01.72 -16 04 47.8 – V T08
2021-07-21 09:43:50 C 19 52 02.39 -16 04 04.8 – V T08
2021-07-21 09:50:29 C 19 52 03.50 -16 02 54.2 – V T08
2021-07-21 09:58:30 C 19 52 04.84 -16 01 29.2 – V T08
2021-07-21 14:08:05 V 19 52 56.20 -15 17 44.5 13.0 V 247
2021-07-21 14:08:05 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:11:24 V 19 52 56.75 -15 17 09.5 13.4 V 247
2021-07-21 14:11:24 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:12:04 V 19 52 56.86 -15 17 02.8 13.4 V 247
2021-07-21 14:12:04 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:12:43 V 19 52 56.98 -15 16 55.3 13.1 V 247
2021-07-21 14:12:43 v 1 135.50856 +34.81760 – – 247
2021-07-21 14:13:23 V 19 52 57.10 -15 16 47.9 13.1 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)