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
2021-07-26 04:03:13 V 20 13 23.19 +03 26 11.4 13.9 V 247
2021-07-26 04:03:13 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:04:12 V 20 13 23.31 +03 26 20.9 13.6 V 247
2021-07-26 04:04:12 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:05:12 V 20 13 23.49 +03 26 30.6 13.7 V 247
2021-07-26 04:05:12 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:06:11 V 20 13 23.60 +03 26 39.0 13.6 V 247
2021-07-26 04:06:11 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:07:11 V 20 13 23.75 +03 26 48.6 13.6 V 247
2021-07-26 04:07:11 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:08:10 V 20 13 23.90 +03 26 58.6 13.8 V 247
2021-07-26 04:08:10 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:14:08 V 20 13 24.72 +03 27 54.0 13.8 V 247
2021-07-26 04:14:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:17:06 V 20 13 25.17 +03 28 23.4 14.0 V 247
2021-07-26 04:17:06 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:19:06 V 20 13 25.43 +03 28 40.9 14.0 V 247
2021-07-26 04:19:06 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:20:05 V 20 13 25.58 +03 28 50.5 14.0 V 247
2021-07-26 04:20:05 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:21:05 V 20 13 25.71 +03 28 59.4 14.2 V 247
2021-07-26 04:21:05 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:23:04 V 20 13 25.95 +03 29 17.9 14.1 V 247
2021-07-26 04:23:04 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:31:21 V 20 13 27.18 +03 30 36.0 14.1 V 247
2021-07-26 04:31:21 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:33:21 V 20 13 27.44 +03 30 54.5 13.9 V 247
2021-07-26 04:33:21 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:35:20 V 20 13 27.68 +03 31 13.7 13.8 V 247
2021-07-26 04:35:20 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:36:19 V 20 13 27.87 +03 31 24.2 13.9 V 247
2021-07-26 04:36:19 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:37:19 V 20 13 27.98 +03 31 32.4 13.9 V 247
2021-07-26 04:37:19 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:38:18 V 20 13 28.11 +03 31 41.5 13.8 V 247
2021-07-26 04:38:18 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:39:18 V 20 13 28.26 +03 31 50.5 13.5 V 247
2021-07-26 04:39:18 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:40:18 V 20 13 28.40 +03 32 00.9 13.6 V 247
2021-07-26 04:40:18 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:41:17 V 20 13 28.52 +03 32 09.1 13.6 V 247
2021-07-26 04:41:17 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:42:17 V 20 13 28.68 +03 32 18.7 13.8 V 247
2021-07-26 04:42:17 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:45:15 V 20 13 29.09 +03 32 46.3 13.6 V 247
2021-07-26 04:45:15 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:46:15 V 20 13 29.25 +03 32 56.4 13.7 V 247
2021-07-26 04:46:15 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:54:12 V 20 13 30.29 +03 34 10.3 13.3 V 247
2021-07-26 04:54:12 v 1 273.41725 +30.43496 – – 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)