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
2021-07-21 23:30:52 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:31:31 V 19 54 48.71 -13 38 14.9 13.1 V 247
2021-07-21 23:31:31 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:32:11 V 19 54 48.84 -13 38 07.3 12.9 V 247
2021-07-21 23:32:11 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:32:51 V 19 54 48.94 -13 38 00.8 13.0 V 247
2021-07-21 23:32:51 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:33:31 V 19 54 49.06 -13 37 53.3 13.3 V 247
2021-07-21 23:33:31 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:36:09 V 19 54 49.55 -13 37 25.8 12.7 V 247
2021-07-21 23:36:09 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:39:32 V 19 54 50.16 -13 36 49.1 12.9 V 247
2021-07-21 23:39:32 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:40:12 V 19 54 50.20 -13 36 42.8 13.0 V 247
2021-07-21 23:40:12 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:40:51 V 19 54 50.37 -13 36 36.1 12.9 V 247
2021-07-21 23:40:51 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:54:06 V 19 54 52.64 -13 34 15.4 13.4 V 247
2021-07-21 23:54:06 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:04:14 V 19 54 54.36 -13 32 26.9 13.2 V 247
2021-07-22 00:04:14 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:04:54 V 19 54 54.47 -13 32 20.5 13.3 V 247
2021-07-22 00:04:54 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:05:33 V 19 54 54.62 -13 32 13.3 13.1 V 247
2021-07-22 00:05:33 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:06:13 V 19 54 54.75 -13 32 06.0 13.1 V 247
2021-07-22 00:06:13 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:06:53 V 19 54 54.83 -13 31 59.6 13.3 V 247
2021-07-22 00:06:53 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:07:33 V 19 54 54.95 -13 31 52.4 13.6 V 247
2021-07-22 00:07:33 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:08:12 V 19 54 55.07 -13 31 45.4 13.2 V 247
2021-07-22 00:08:12 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:08:52 V 19 54 55.19 -13 31 37.8 12.8 V 247
2021-07-22 00:08:52 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:09:32 V 19 54 55.28 -13 31 31.4 12.7 V 247
2021-07-22 00:09:32 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:10:11 V 19 54 55.42 -13 31 24.1 13.0 V 247
2021-07-22 00:10:11 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:10:51 V 19 54 55.54 -13 31 16.8 13.1 V 247
2021-07-22 00:10:51 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:11:31 V 19 54 55.63 -13 31 10.0 13.5 V 247
2021-07-22 00:11:31 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:12:11 V 19 54 55.76 -13 31 02.8 13.1 V 247
2021-07-22 00:12:11 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:12:50 V 19 54 55.85 -13 30 56.2 13.0 V 247
2021-07-22 00:12:50 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:13:30 V 19 54 55.97 -13 30 49.0 13.1 V 247
2021-07-22 00:13:30 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:14:10 V 19 54 56.08 -13 30 42.3 13.1 V 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)