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 13:43:16 V 19 42 48.95 -23 45 16.5 13.0 V 247
2021-07-19 13:43:16 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:43:56 V 19 42 49.09 -23 45 09.5 13.0 V 247
2021-07-19 13:43:56 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:44:36 V 19 42 49.19 -23 45 03.3 13.1 V 247
2021-07-19 13:44:36 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:45:16 V 19 42 49.30 -23 44 56.5 13.1 V 247
2021-07-19 13:45:16 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:45:55 V 19 42 49.43 -23 44 49.3 13.2 V 247
2021-07-19 13:45:55 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:46:35 V 19 42 49.54 -23 44 43.1 13.1 V 247
2021-07-19 13:46:35 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:47:15 V 19 42 49.67 -23 44 36.1 13.0 V 247
2021-07-19 13:47:15 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:47:54 V 19 42 49.80 -23 44 29.1 13.0 V 247
2021-07-19 13:47:54 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:48:34 V 19 42 49.92 -23 44 22.4 13.0 V 247
2021-07-19 13:48:34 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:49:14 V 19 42 50.04 -23 44 15.9 13.0 V 247
2021-07-19 13:49:14 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:49:54 V 19 42 50.18 -23 44 08.6 13.0 V 247
2021-07-19 13:49:54 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:50:33 V 19 42 50.30 -23 44 02.4 13.1 V 247
2021-07-19 13:50:33 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:51:13 V 19 42 50.41 -23 43 55.3 13.0 V 247
2021-07-19 13:51:13 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:51:53 V 19 42 50.56 -23 43 48.9 13.2 V 247
2021-07-19 13:51:53 v 1 135.36081 +35.05973 – – 247
2021-07-19 13:52:32 V 19 42 50.66 -23 43 42.4 13.4 V 247
2021-07-19 13:52:32 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:12:26 V 19 42 54.28 -23 40 18.2 12.9 V 247
2021-07-19 14:12:26 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:13:05 V 19 42 54.40 -23 40 11.3 12.9 V 247
2021-07-19 14:13:05 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:13:45 V 19 42 54.52 -23 40 04.8 12.9 V 247
2021-07-19 14:13:45 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:14:25 V 19 42 54.65 -23 39 58.0 12.9 V 247
2021-07-19 14:14:25 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:15:04 V 19 42 54.77 -23 39 51.5 13.0 V 247
2021-07-19 14:15:04 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:15:44 V 19 42 54.88 -23 39 44.8 13.0 V 247
2021-07-19 14:15:44 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:17:43 V 19 42 55.26 -23 39 24.3 13.1 V 247
2021-07-19 14:17:43 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:20:22 V 19 42 55.72 -23 38 57.5 12.3 V 247
2021-07-19 14:20:22 v 1 135.36081 +35.05973 – – 247
2021-07-19 14:21:02 V 19 42 55.82 -23 38 50.8 13.0 V 247
2021-07-19 14:21:02 v 1 135.36081 +35.05973 – – 247
2021-07-19 15:47:00 V 19 43 11.67 -23 24 08.2 12.9 V 247
2021-07-19 15:47:00 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)