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 13:26:44 V 19 42 45.86 -23 48 05.2 13.1 V 247
2021-07-19 13:26:44 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:27:23 V 19 42 45.98 -23 47 58.2 13.0 V 247
2021-07-19 13:27:23 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:28:03 V 19 42 46.12 -23 47 51.0 13.1 V 247
2021-07-19 13:28:03 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:28:43 V 19 42 46.24 -23 47 44.9 13.1 V 247
2021-07-19 13:28:43 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:29:23 V 19 42 46.35 -23 47 38.1 12.9 V 247
2021-07-19 13:29:23 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:30:02 V 19 42 46.49 -23 47 31.0 13.1 V 247
2021-07-19 13:30:02 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:30:42 V 19 42 46.61 -23 47 24.6 13.0 V 247
2021-07-19 13:30:42 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:31:22 V 19 42 46.73 -23 47 18.1 13.1 V 247
2021-07-19 13:31:22 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:32:01 V 19 42 46.86 -23 47 11.2 13.1 V 247
2021-07-19 13:32:01 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:32:41 V 19 42 46.96 -23 47 04.4 13.1 V 247
2021-07-19 13:32:41 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:33:21 V 19 42 47.10 -23 46 57.4 13.1 V 247
2021-07-19 13:33:21 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:34:00 V 19 42 47.20 -23 46 51.2 13.1 V 247
2021-07-19 13:34:00 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:34:40 V 19 42 47.35 -23 46 44.2 13.1 V 247
2021-07-19 13:34:40 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:35:20 V 19 42 47.47 -23 46 37.4 13.2 V 247
2021-07-19 13:35:20 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:36:00 V 19 42 47.60 -23 46 30.4 13.1 V 247
2021-07-19 13:36:00 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:36:39 V 19 42 47.73 -23 46 23.7 13.1 V 247
2021-07-19 13:36:39 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:37:19 V 19 42 47.85 -23 46 16.9 13.1 V 247
2021-07-19 13:37:19 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:37:59 V 19 42 47.98 -23 46 10.7 13.5 V 247
2021-07-19 13:37:59 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:38:39 V 19 42 48.09 -23 46 03.7 13.5 V 247
2021-07-19 13:38:39 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:39:18 V 19 42 48.23 -23 45 57.1 13.1 V 247
2021-07-19 13:39:18 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:39:58 V 19 42 48.34 -23 45 50.2 13.1 V 247
2021-07-19 13:39:58 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:40:38 V 19 42 48.47 -23 45 43.7 13.2 V 247
2021-07-19 13:40:38 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:41:17 V 19 42 48.59 -23 45 36.6 13.4 V 247
2021-07-19 13:41:17 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:41:57 V 19 42 48.71 -23 45 29.7 13.3 V 247
2021-07-19 13:41:57 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:42:37 V 19 42 48.82 -23 45 23.1 13.0 V 247
2021-07-19 13:42:37 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)