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
2021-07-19 12:56:00 V 19 42 40.15 -23 53 17.2 13.0 V 247
2021-07-19 12:56:00 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:56:39 V 19 42 40.27 -23 53 10.6 13.0 V 247
2021-07-19 12:56:39 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:57:59 V 19 42 40.54 -23 52 57.1 12.9 V 247
2021-07-19 12:57:59 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:58:39 V 19 42 40.67 -23 52 50.0 13.0 V 247
2021-07-19 12:58:39 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:59:18 V 19 42 40.79 -23 52 43.3 13.0 V 247
2021-07-19 12:59:18 v 1 135.36081 +35.05973 – – 247
2021-07-19 12:59:54 C 19 42 40.28 -23 52 40.5 – q Q21
2021-07-19 13:00:38 V 19 42 41.02 -23 52 29.8 13.0 V 247
2021-07-19 13:00:38 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:01:17 V 19 42 41.15 -23 52 23.4 13.0 V 247
2021-07-19 13:01:17 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:01:57 V 19 42 41.27 -23 52 17.0 13.0 V 247
2021-07-19 13:01:57 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:02:37 V 19 42 41.39 -23 52 10.0 12.9 V 247
2021-07-19 13:02:37 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:03:56 V 19 42 41.62 -23 51 56.9 13.1 V 247
2021-07-19 13:03:56 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:04:36 V 19 42 41.73 -23 51 50.1 13.0 V 247
2021-07-19 13:04:36 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:05:59 C 19 42 41.41 -23 51 39.0 – q Q21
2021-07-19 13:08:34 V 19 42 42.51 -23 51 10.2 12.7 V 247
2021-07-19 13:08:34 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:13:12 V 19 42 43.31 -23 50 22.3 13.3 V 247
2021-07-19 13:13:12 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:14:32 V 19 42 43.67 -23 50 09.5 13.3 V 247
2021-07-19 13:14:32 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:15:11 V 19 42 43.74 -23 50 03.0 13.3 V 247
2021-07-19 13:15:11 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:16:31 V 19 42 43.96 -23 49 48.0 13.3 V 247
2021-07-19 13:16:31 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:21:26 V 19 42 44.87 -23 48 58.5 13.0 V 247
2021-07-19 13:21:26 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:22:06 V 19 42 44.98 -23 48 52.3 13.1 V 247
2021-07-19 13:22:06 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:22:45 V 19 42 45.13 -23 48 45.6 13.1 V 247
2021-07-19 13:22:45 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:23:25 V 19 42 45.25 -23 48 38.6 13.1 V 247
2021-07-19 13:23:25 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:24:05 V 19 42 45.38 -23 48 32.0 13.0 V 247
2021-07-19 13:24:05 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:24:45 V 19 42 45.49 -23 48 25.2 13.1 V 247
2021-07-19 13:24:45 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:25:24 V 19 42 45.62 -23 48 18.3 12.9 V 247
2021-07-19 13:25:24 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:26:04 V 19 42 45.73 -23 48 11.5 13.0 V 247
2021-07-19 13:26:04 v 1 135.36081 +35.05973 – – 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)