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
2021-07-27 10:18:04 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:19:00 V 20 18 26.06 +08 02 33.3 14.0 V 247
2021-07-27 10:19:00 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:19:55 V 20 18 26.20 +08 02 41.4 14.0 V 247
2021-07-27 10:19:55 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:20:51 V 20 18 26.33 +08 02 48.8 14.2 V 247
2021-07-27 10:20:51 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:21:47 V 20 18 26.47 +08 02 58.0 13.9 V 247
2021-07-27 10:21:47 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:22:42 V 20 18 26.60 +08 03 05.8 14.0 V 247
2021-07-27 10:22:42 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:23:38 V 20 18 26.70 +08 03 12.4 13.9 V 247
2021-07-27 10:23:38 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:24:33 V 20 18 26.86 +08 03 21.4 14.0 V 247
2021-07-27 10:24:33 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:25:29 V 20 18 26.97 +08 03 30.0 13.9 V 247
2021-07-27 10:25:29 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:26:25 V 20 18 27.10 +08 03 37.4 14.1 V 247
2021-07-27 10:26:25 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:34:07 V 20 18 28.24 +08 04 45.3 14.0 V 247
2021-07-27 10:34:07 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:35:03 V 20 18 28.33 +08 04 53.0 14.1 V 247
2021-07-27 10:35:03 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:35:58 V 20 18 28.49 +08 05 01.6 13.9 V 247
2021-07-27 10:35:58 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:36:54 V 20 18 28.62 +08 05 09.7 13.9 V 247
2021-07-27 10:36:54 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:38:45 V 20 18 28.87 +08 05 25.4 14.1 V 247
2021-07-27 10:38:45 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:39:41 V 20 18 28.98 +08 05 33.6 14.0 V 247
2021-07-27 10:39:41 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:40:36 V 20 18 29.13 +08 05 41.4 14.1 V 247
2021-07-27 10:40:36 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:41:32 V 20 18 29.26 +08 05 50.0 14.0 V 247
2021-07-27 10:41:32 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:42:28 V 20 18 29.38 +08 05 58.2 14.0 V 247
2021-07-27 10:42:28 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:43:23 V 20 18 29.51 +08 06 06.1 14.0 V 247
2021-07-27 10:43:23 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:44:19 V 20 18 29.64 +08 06 14.6 14.0 V 247
2021-07-27 10:44:19 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:45:14 V 20 18 29.77 +08 06 22.2 14.1 V 247
2021-07-27 10:45:14 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:46:10 V 20 18 29.90 +08 06 30.3 14.0 V 247
2021-07-27 10:46:10 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:47:06 V 20 18 30.02 +08 06 38.7 13.9 V 247
2021-07-27 10:47:06 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:48:01 V 20 18 30.14 +08 06 48.1 13.8 V 247
2021-07-27 10:48:01 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:49:52 V 20 18 30.43 +08 07 04.2 14.1 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)