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 21:58:44 v 1 357.57994 +47.25999 – – 247
2021-07-21 21:58:48 C 19 54 25.07 -13 54 24.4 – V 186
2021-07-21 21:59:21 C 19 54 25.18 -13 54 18.7 – V 186
2021-07-21 21:59:24 V 19 54 32.64 -13 54 29.7 13.1 V 247
2021-07-21 21:59:24 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:00:04 V 19 54 32.71 -13 54 23.3 13.2 V 247
2021-07-21 22:00:04 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:00:44 V 19 54 32.85 -13 54 15.5 13.0 V 247
2021-07-21 22:00:44 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:01:23 V 19 54 32.95 -13 54 09.8 13.3 V 247
2021-07-21 22:01:23 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:02:43 V 19 54 33.18 -13 53 55.9 13.1 V 247
2021-07-21 22:02:43 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:05:25 V 19 54 33.69 -13 53 26.6 13.1 V 247
2021-07-21 22:05:25 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:06:05 V 19 54 33.86 -13 53 19.1 13.0 V 247
2021-07-21 22:06:05 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:06:45 V 19 54 33.91 -13 53 13.0 13.0 V 247
2021-07-21 22:06:45 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:07:25 V 19 54 34.03 -13 53 05.4 13.2 V 247
2021-07-21 22:07:25 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:08:44 V 19 54 34.28 -13 52 51.4 13.2 V 247
2021-07-21 22:08:44 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:09:24 V 19 54 34.37 -13 52 45.0 13.2 V 247
2021-07-21 22:09:24 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:10:03 V 19 54 34.51 -13 52 37.1 13.3 V 247
2021-07-21 22:10:03 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:10:43 V 19 54 34.65 -13 52 30.6 13.1 V 247
2021-07-21 22:10:43 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:11:23 V 19 54 34.79 -13 52 23.7 13.2 V 247
2021-07-21 22:11:23 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:12:03 V 19 54 34.90 -13 52 16.3 13.0 V 247
2021-07-21 22:12:03 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:12:42 V 19 54 34.99 -13 52 10.5 13.4 V 247
2021-07-21 22:12:42 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:13:41 C 19 54 34.22 -13 52 03.9 – V K85
2021-07-21 22:14:02 V 19 54 35.22 -13 51 56.6 12.9 V 247
2021-07-21 22:14:02 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:14:41 V 19 54 35.39 -13 51 48.6 12.9 V 247
2021-07-21 22:14:41 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:15:21 V 19 54 35.50 -13 51 41.4 13.0 V 247
2021-07-21 22:15:21 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:16:01 V 19 54 35.60 -13 51 35.9 13.0 V 247
2021-07-21 22:16:01 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:16:41 V 19 54 35.70 -13 51 28.4 13.2 V 247
2021-07-21 22:16:41 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:17:20 V 19 54 35.86 -13 51 20.1 12.7 V 247
2021-07-21 22:17:20 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:17:22 C 19 54 34.87 -13 51 24.8 – V K85
2021-07-21 22:18:00 V 19 54 35.91 -13 51 13.3 12.9 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)