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 10:49:52 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:50:48 V 20 18 30.55 +08 07 11.1 13.9 V 247
2021-07-27 10:50:48 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:51:44 V 20 18 30.67 +08 07 19.9 13.9 V 247
2021-07-27 10:51:44 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:52:39 V 20 18 30.79 +08 07 27.6 13.9 V 247
2021-07-27 10:52:39 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:53:35 V 20 18 30.90 +08 07 35.5 13.9 V 247
2021-07-27 10:53:35 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:54:30 V 20 18 31.04 +08 07 44.1 13.8 V 247
2021-07-27 10:54:30 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:55:26 V 20 18 31.17 +08 07 52.1 13.9 V 247
2021-07-27 10:55:26 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:56:22 V 20 18 31.31 +08 07 59.9 13.9 V 247
2021-07-27 10:56:22 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:57:17 V 20 18 31.42 +08 08 07.4 14.0 V 247
2021-07-27 10:57:17 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:58:13 V 20 18 31.55 +08 08 16.6 13.9 V 247
2021-07-27 10:58:13 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:59:08 V 20 18 31.66 +08 08 24.4 13.9 V 247
2021-07-27 10:59:08 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:00:04 V 20 18 31.80 +08 08 32.2 13.9 V 247
2021-07-27 11:00:04 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:01:00 V 20 18 31.91 +08 08 40.8 13.8 V 247
2021-07-27 11:01:00 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:01:55 V 20 18 32.07 +08 08 48.9 13.9 V 247
2021-07-27 11:01:55 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:02:51 V 20 18 32.18 +08 08 57.2 13.9 V 247
2021-07-27 11:02:51 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:03:46 V 20 18 32.32 +08 09 04.5 13.9 V 247
2021-07-27 11:03:46 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:04:42 V 20 18 32.43 +08 09 13.1 13.9 V 247
2021-07-27 11:04:42 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:06:33 V 20 18 32.68 +08 09 28.4 13.8 V 247
2021-07-27 11:06:33 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:07:29 V 20 18 32.83 +08 09 37.8 13.9 V 247
2021-07-27 11:07:29 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:08:24 V 20 18 32.95 +08 09 45.5 13.8 V 247
2021-07-27 11:08:24 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:09:20 V 20 18 33.09 +08 09 53.5 13.9 V 247
2021-07-27 11:09:20 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:10:16 V 20 18 33.20 +08 10 01.9 13.7 V 247
2021-07-27 11:10:16 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:11:11 V 20 18 33.32 +08 10 09.8 13.8 V 247
2021-07-27 11:11:11 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:12:07 V 20 18 33.45 +08 10 18.5 13.8 V 247
2021-07-27 11:12:07 v 1 151.94279 -27.45589 – – 247
2021-07-27 11:13:02 V 20 18 33.58 +08 10 26.1 13.9 V 247
2021-07-27 11:13:02 v 1 151.94279 -27.45589 – – 247
2021-07-27 20:24:00 V 20 20 00.07 +09 26 55.4 13.9 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)