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 16:12:49 V 19 43 16.31 -23 19 40.0 12.7 V 247
2021-07-19 16:12:49 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:13:29 V 19 43 16.44 -23 19 32.6 13.0 V 247
2021-07-19 16:13:29 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:14:08 V 19 43 16.54 -23 19 26.1 13.1 V 247
2021-07-19 16:14:08 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:14:48 V 19 43 16.65 -23 19 21.2 12.8 V 247
2021-07-19 16:14:48 v 1 135.36081 +35.05973 – – 247
2021-07-19 16:16:47 V 19 43 17.03 -23 18 59.4 12.6 V 247
2021-07-19 16:16:47 v 1 135.36081 +35.05973 – – 247
2021-07-19 17:20:40 C 19 43 37.38 -23 08 02.4 – – 186
2021-07-19 17:21:12 C 19 43 37.53 -23 07 59.5 – – 186
2021-07-19 22:16:44 C 19 44 39.01 -22 17 20.0 – V K85
2021-07-19 22:16:45 C 19 44 32.24 -22 17 00.9 – – 186
2021-07-19 22:18:53 C 19 44 32.66 -22 16 38.4 – – 186
2021-07-19 22:34:44 C 19 44 42.40 -22 14 14.1 – V K85
2021-07-20 00:52:31 C 19 45 16.04 -21 47 44.6 – Z X39
2021-07-20 00:53:35 C 19 45 16.23 -21 47 38.3 – Z X39
2021-07-20 00:54:40 C 19 45 16.23 -21 47 25.4 – Z X39
2021-07-20 00:55:44 C 19 45 16.70 -21 47 15.8 – Z X39
2021-07-20 00:56:49 C 19 45 16.81 -21 46 58.4 – Z X39
2021-07-20 00:57:54 C 19 45 16.67 -21 46 50.1 – Z X39
2021-07-20 00:58:58 C 19 45 17.07 -21 46 41.6 – Z X39
2021-07-20 01:00:02 C 19 45 17.26 -21 46 25.4 – Z X39
2021-07-20 01:01:07 C 19 45 17.42 -21 46 17.3 – Z X39
2021-07-20 01:02:11 C 19 45 17.68 -21 46 04.7 – Z X39
2021-07-20 01:03:16 C 19 45 17.78 -21 45 57.1 – Z X39
2021-07-20 01:04:21 C 19 45 18.52 -21 45 43.2 – Z X39
2021-07-20 01:05:25 C 19 45 18.56 -21 45 37.6 – Z X39
2021-07-20 01:06:29 C 19 45 18.46 -21 45 22.7 – Z X39
2021-07-20 01:07:34 C 19 45 18.67 -21 45 11.8 – Z X39
2021-07-20 01:08:38 C 19 45 19.06 -21 44 59.9 – Z X39
2021-07-20 01:09:43 C 19 45 19.27 -21 44 53.1 – Z X39
2021-07-20 01:10:48 C 19 45 19.66 -21 44 41.3 – Z X39
2021-07-20 01:11:52 C 19 45 19.84 -21 44 28.4 – Z X39
2021-07-20 01:12:57 C 19 45 19.82 -21 44 13.7 – Z X39
2021-07-20 01:14:01 C 19 45 19.91 -21 44 08.1 – Z X39
2021-07-20 01:15:05 C 19 45 20.19 -21 43 53.5 – Z X39
2021-07-20 01:16:10 C 19 45 20.57 -21 43 41.6 – Z X39
2021-07-20 01:17:15 C 19 45 20.66 -21 43 29.9 – Z X39
2021-07-20 01:18:19 C 19 45 20.46 -21 43 22.5 – Z X39
2021-07-20 01:19:24 C 19 45 20.67 -21 43 11.5 – Z X39
2021-07-20 01:20:28 C 19 45 21.16 -21 42 56.2 – Z X39
2021-07-20 01:21:32 C 19 45 21.20 -21 42 50.3 – Z X39
2021-07-20 01:22:37 C 19 45 21.40 -21 42 35.2 – Z X39
2021-07-20 01:23:42 C 19 45 21.68 -21 42 26.7 – Z X39
2021-07-20 01:24:46 C 19 45 21.88 -21 42 15.8 – Z X39
2021-07-20 01:25:51 C 19 45 21.97 -21 42 04.1 – Z X39
2021-07-20 01:26:55 C 19 45 22.24 -21 41 54.3 – Z X39
2021-07-20 01:27:59 C 19 45 22.20 -21 41 38.9 – Z X39
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)