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 05:48:21 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:50:20 V 19 51 17.29 -16 45 43.4 13.0 V 247
2021-07-21 05:50:20 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:54:58 V 19 51 18.12 -16 44 52.5 12.9 V 247
2021-07-21 05:54:58 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:57:37 V 19 51 18.60 -16 44 26.9 13.0 V 247
2021-07-21 05:57:37 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:58:16 V 19 51 18.74 -16 44 18.7 12.8 V 247
2021-07-21 05:58:16 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:04:58 C 19 51 16.36 -16 43 19.0 – V V93
2021-07-21 06:08:30 V 19 51 20.46 -16 42 30.6 12.9 V 247
2021-07-21 06:08:30 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:09:50 V 19 51 20.71 -16 42 17.2 13.0 V 247
2021-07-21 06:09:50 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:10:29 V 19 51 20.85 -16 42 09.9 13.1 V 247
2021-07-21 06:10:29 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:11:09 V 19 51 20.95 -16 42 03.1 12.9 V 247
2021-07-21 06:11:09 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:11:49 V 19 51 21.06 -16 41 56.5 12.8 V 247
2021-07-21 06:11:49 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:12:28 V 19 51 21.22 -16 41 48.9 12.9 V 247
2021-07-21 06:12:28 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:13:08 V 19 51 21.29 -16 41 42.2 13.0 V 247
2021-07-21 06:13:08 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:13:48 V 19 51 21.41 -16 41 35.0 13.0 V 247
2021-07-21 06:13:48 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:14:28 V 19 51 21.55 -16 41 28.8 12.9 V 247
2021-07-21 06:14:28 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:15:07 V 19 51 21.67 -16 41 21.3 13.1 V 247
2021-07-21 06:15:07 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:15:47 V 19 51 21.74 -16 41 14.1 13.0 V 247
2021-07-21 06:15:47 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:16:27 V 19 51 21.87 -16 41 07.5 13.0 V 247
2021-07-21 06:16:27 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:17:06 V 19 51 21.94 -16 41 01.5 13.1 V 247
2021-07-21 06:17:06 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:20:25 V 19 51 22.51 -16 40 26.5 13.0 V 247
2021-07-21 06:20:25 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:21:05 V 19 51 22.63 -16 40 18.8 13.1 V 247
2021-07-21 06:21:05 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:21:44 V 19 51 22.83 -16 40 10.7 13.0 V 247
2021-07-21 06:21:44 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:22:24 V 19 51 22.91 -16 40 04.3 13.0 V 247
2021-07-21 06:22:24 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:23:04 V 19 51 22.97 -16 39 58.6 13.0 V 247
2021-07-21 06:23:04 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:23:43 V 19 51 23.06 -16 39 51.5 13.1 V 247
2021-07-21 06:23:43 v 1 240.91437 +34.23800 – – 247
2021-07-21 06:24:23 V 19 51 23.21 -16 39 44.2 12.9 V 247
2021-07-21 06:24:23 v 1 240.91437 +34.23800 – – 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)