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 22:07:41 V 20 20 14.41 +09 41 36.5 13.9 V 247
2021-07-27 22:07:41 v 1 017.25163 +48.23324 – – 247
2021-07-27 22:22:53 C 20 20 15.83 +09 43 50.2 – V L54
2021-07-27 22:55:50 C 20 20 20.23 +09 48 28.0 – V L54
2021-07-27 23:23:22 C 20 20 23.91 +09 52 19.4 – V L54
2021-07-27 23:51:36 C 20 20 27.70 +09 56 16.2 – V L54
2021-07-28 05:07:21 V 20 21 23.61 +10 40 20.2 14.0 V 247
2021-07-28 05:07:21 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:08:26 V 20 21 23.72 +10 40 25.9 14.2 V 247
2021-07-28 05:08:26 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:08:31 V 20 21 23.06 +10 40 12.3 14.0 V 247
2021-07-28 05:08:31 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:09:31 V 20 21 23.21 +10 40 19.8 14.1 V 247
2021-07-28 05:09:31 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:10:31 V 20 21 23.37 +10 40 29.2 14.3 V 247
2021-07-28 05:10:31 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:11:25 V 20 21 24.13 +10 40 50.7 14.3 V 247
2021-07-28 05:11:25 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:11:30 V 20 21 23.48 +10 40 37.1 14.1 V 247
2021-07-28 05:11:30 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:13:29 V 20 21 23.79 +10 40 52.6 14.2 V 247
2021-07-28 05:13:29 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:15:23 V 20 21 24.59 +10 41 25.8 14.1 V 247
2021-07-28 05:15:23 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:15:28 V 20 21 24.02 +10 41 09.8 14.5 V 247
2021-07-28 05:15:28 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:16:23 V 20 21 24.77 +10 41 34.1 14.0 V 247
2021-07-28 05:16:23 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:16:28 V 20 21 24.14 +10 41 18.2 14.3 V 247
2021-07-28 05:16:28 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:17:22 V 20 21 24.85 +10 41 41.9 14.2 V 247
2021-07-28 05:17:22 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:18:27 V 20 21 24.45 +10 41 34.9 14.2 V 247
2021-07-28 05:18:27 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:19:27 V 20 21 24.58 +10 41 43.0 14.2 V 247
2021-07-28 05:19:27 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:20:21 V 20 21 25.36 +10 42 06.0 14.2 V 247
2021-07-28 05:20:21 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:20:26 V 20 21 24.71 +10 41 50.9 14.1 V 247
2021-07-28 05:20:26 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:21:20 V 20 21 25.41 +10 42 14.7 14.4 V 247
2021-07-28 05:21:20 v 1 237.71936 +37.76910 – – 247
2021-07-28 05:21:26 V 20 21 24.85 +10 42 00.0 14.2 V 247
2021-07-28 05:21:26 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:22:25 V 20 21 25.00 +10 42 07.5 14.3 V 247
2021-07-28 05:22:25 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:23:25 V 20 21 25.16 +10 42 16.1 14.3 V 247
2021-07-28 05:23:25 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:24:24 V 20 21 25.28 +10 42 24.1 14.2 V 247
2021-07-28 05:24:24 v 1 237.89519 +47.56303 – – 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)