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 09:50:16 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:51:12 V 20 18 22.09 +07 58 27.9 13.9 V 247
2021-07-27 09:51:12 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:52:08 V 20 18 22.24 +07 58 36.5 14.1 V 247
2021-07-27 09:52:08 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:53:03 V 20 18 22.34 +07 58 43.8 13.9 V 247
2021-07-27 09:53:03 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:54:54 V 20 18 22.61 +07 59 01.0 14.2 V 247
2021-07-27 09:54:54 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:56:45 V 20 18 22.85 +07 59 17.4 14.1 V 247
2021-07-27 09:56:45 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:58:37 V 20 18 23.16 +07 59 34.0 13.8 V 247
2021-07-27 09:58:37 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:59:32 V 20 18 23.29 +07 59 41.4 14.1 V 247
2021-07-27 09:59:32 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:00:28 V 20 18 23.43 +07 59 49.6 13.9 V 247
2021-07-27 10:00:28 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:01:24 V 20 18 23.59 +07 59 58.1 14.0 V 247
2021-07-27 10:01:24 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:02:19 V 20 18 23.70 +08 00 06.0 14.0 V 247
2021-07-27 10:02:19 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:03:15 V 20 18 23.83 +08 00 14.8 14.0 V 247
2021-07-27 10:03:15 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:04:10 V 20 18 23.96 +08 00 23.1 13.9 V 247
2021-07-27 10:04:10 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:05:06 V 20 18 24.07 +08 00 31.0 14.0 V 247
2021-07-27 10:05:06 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:06:01 V 20 18 24.22 +08 00 38.7 13.9 V 247
2021-07-27 10:06:01 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:06:57 V 20 18 24.35 +08 00 46.9 14.0 V 247
2021-07-27 10:06:57 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:07:53 V 20 18 24.50 +08 00 55.4 14.0 V 247
2021-07-27 10:07:53 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:08:48 V 20 18 24.62 +08 01 03.2 14.1 V 247
2021-07-27 10:08:48 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:09:44 V 20 18 24.77 +08 01 11.1 14.1 V 247
2021-07-27 10:09:44 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:10:39 V 20 18 24.90 +08 01 20.0 14.0 V 247
2021-07-27 10:10:39 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:11:35 V 20 18 25.00 +08 01 27.8 14.0 V 247
2021-07-27 10:11:35 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:12:31 V 20 18 25.15 +08 01 35.6 14.0 V 247
2021-07-27 10:12:31 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:13:26 V 20 18 25.30 +08 01 43.7 13.9 V 247
2021-07-27 10:13:26 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:14:22 V 20 18 25.41 +08 01 52.5 13.9 V 247
2021-07-27 10:14:22 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:15:17 V 20 18 25.55 +08 01 59.9 14.0 V 247
2021-07-27 10:15:17 v 1 151.94279 -27.45589 – – 247
2021-07-27 10:18:04 V 20 18 25.92 +08 02 24.4 14.0 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)