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 16:16:22 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:16:29 V 19 53 17.52 -14 54 58.1 13.0 V 247
2021-07-21 16:16:29 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:17:01 V 19 53 18.13 -14 54 52.7 12.9 V 247
2021-07-21 16:17:01 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:17:09 V 19 53 17.62 -14 54 51.4 13.0 V 247
2021-07-21 16:17:09 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:17:41 V 19 53 18.23 -14 54 45.5 13.0 V 247
2021-07-21 16:17:41 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:17:49 V 19 53 17.74 -14 54 44.0 13.0 V 247
2021-07-21 16:17:49 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:18:21 V 19 53 18.34 -14 54 38.7 13.0 V 247
2021-07-21 16:18:21 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:18:28 V 19 53 17.85 -14 54 37.0 13.0 V 247
2021-07-21 16:18:28 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:19:01 V 19 53 18.44 -14 54 31.6 13.0 V 247
2021-07-21 16:19:01 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:19:08 V 19 53 17.97 -14 54 30.0 13.0 V 247
2021-07-21 16:19:08 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:19:40 V 19 53 18.58 -14 54 24.2 12.9 V 247
2021-07-21 16:19:40 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:19:48 V 19 53 18.07 -14 54 23.0 12.9 V 247
2021-07-21 16:19:48 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:20:20 V 19 53 18.67 -14 54 17.4 12.9 V 247
2021-07-21 16:20:20 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:20:27 V 19 53 18.21 -14 54 15.8 13.0 V 247
2021-07-21 16:20:27 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:21:00 V 19 53 18.81 -14 54 10.3 13.0 V 247
2021-07-21 16:21:00 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:21:07 V 19 53 18.31 -14 54 08.8 13.0 V 247
2021-07-21 16:21:07 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:21:39 V 19 53 18.93 -14 54 02.6 12.9 V 247
2021-07-21 16:21:39 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:21:47 V 19 53 18.43 -14 54 01.7 13.0 V 247
2021-07-21 16:21:47 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:22:19 V 19 53 19.06 -14 53 56.0 13.0 V 247
2021-07-21 16:22:19 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:22:27 V 19 53 18.53 -14 53 54.9 13.0 V 247
2021-07-21 16:22:27 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:22:59 V 19 53 19.16 -14 53 49.4 12.9 V 247
2021-07-21 16:22:59 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:23:06 V 19 53 18.66 -14 53 47.6 12.9 V 247
2021-07-21 16:23:06 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:23:39 V 19 53 19.28 -14 53 42.1 12.8 V 247
2021-07-21 16:23:39 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:23:46 V 19 53 18.76 -14 53 40.7 12.9 V 247
2021-07-21 16:23:46 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:24:18 V 19 53 19.40 -14 53 34.4 13.0 V 247
2021-07-21 16:24:18 v 1 135.50856 +34.81760 – – 247
2021-07-21 16:24:26 V 19 53 18.88 -14 53 33.3 13.0 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)