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 04:09:38 V 20 17 23.37 +07 06 34.3 14.3 V 247
2021-07-27 04:09:38 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:10:37 V 20 17 23.50 +07 06 42.1 14.2 V 247
2021-07-27 04:10:37 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:16:35 V 20 17 24.35 +07 07 35.3 13.2 V 247
2021-07-27 04:16:35 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:17:34 V 20 17 24.45 +07 07 43.5 13.2 V 247
2021-07-27 04:17:34 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:18:34 V 20 17 24.59 +07 07 52.5 13.6 V 247
2021-07-27 04:18:34 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:23:54 V 20 17 25.23 +07 08 39.0 13.8 V 247
2021-07-27 04:23:54 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:25:53 V 20 17 25.48 +07 08 56.4 13.7 V 247
2021-07-27 04:25:53 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:26:53 V 20 17 25.64 +07 09 06.0 13.7 V 247
2021-07-27 04:26:53 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:28:52 V 20 17 25.87 +07 09 23.4 14.1 V 247
2021-07-27 04:28:52 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:29:51 V 20 17 26.01 +07 09 32.9 13.8 V 247
2021-07-27 04:29:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:30:51 V 20 17 26.14 +07 09 41.2 13.9 V 247
2021-07-27 04:30:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:31:51 V 20 17 26.28 +07 09 51.5 13.8 V 247
2021-07-27 04:31:51 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:32:50 V 20 17 26.41 +07 10 00.0 13.7 V 247
2021-07-27 04:32:50 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:33:50 V 20 17 26.54 +07 10 07.3 13.8 V 247
2021-07-27 04:33:50 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:34:49 V 20 17 26.69 +07 10 17.7 14.0 V 247
2021-07-27 04:34:49 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:35:49 V 20 17 26.81 +07 10 25.1 13.7 V 247
2021-07-27 04:35:49 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:36:48 V 20 17 26.91 +07 10 33.5 13.8 V 247
2021-07-27 04:36:48 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:37:48 V 20 17 27.12 +07 10 43.6 14.0 V 247
2021-07-27 04:37:48 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:38:47 V 20 17 27.27 +07 10 53.2 13.9 V 247
2021-07-27 04:38:47 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:40:47 V 20 17 27.51 +07 11 10.7 13.9 V 247
2021-07-27 04:40:47 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:41:46 V 20 17 27.64 +07 11 19.8 14.0 V 247
2021-07-27 04:41:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:42:46 V 20 17 27.80 +07 11 28.0 13.9 V 247
2021-07-27 04:42:46 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:43:45 V 20 17 27.93 +07 11 37.1 13.9 V 247
2021-07-27 04:43:45 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:44:45 V 20 17 28.04 +07 11 45.4 13.9 V 247
2021-07-27 04:44:45 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:45:44 V 20 17 28.14 +07 11 53.7 14.2 V 247
2021-07-27 04:45:44 v 1 273.41734 +30.43474 – – 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)