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
2021-08-01 07:33:59 S 20 33 06.770 +21 33 39.24 – V C57
2021-08-01 07:33:59 s 1 -124305.89 8 +352644.93 3630.0 – C57
2021-08-01 07:35:42 V 20 35 28.93 +22 18 18.5 15.0 V 247
2021-08-01 07:35:42 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:36:41 V 20 35 29.01 +22 18 23.6 14.6 V 247
2021-08-01 07:36:41 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:37:41 V 20 35 29.12 +22 18 29.1 15.3 V 247
2021-08-01 07:37:41 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:41:39 V 20 35 29.54 +22 18 52.7 14.1 V 247
2021-08-01 07:41:39 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:49:59 V 20 35 30.49 +22 19 44.3 14.7 V 247
2021-08-01 07:49:59 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:50:59 V 20 35 30.59 +22 19 50.2 15.0 V 247
2021-08-01 07:50:59 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:51:58 V 20 35 30.68 +22 19 56.0 14.8 V 247
2021-08-01 07:51:58 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:52:58 V 20 35 30.77 +22 20 01.6 14.8 V 247
2021-08-01 07:52:58 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:53:58 V 20 35 30.91 +22 20 06.9 14.9 V 247
2021-08-01 07:53:58 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:53:59 S 20 33 10.277 +21 35 34.30 – V C57
2021-08-01 07:53:59 s 1 -124936.39 4 +352103.56 9420.0 – C57
2021-08-01 07:54:57 V 20 35 31.03 +22 20 13.3 14.7 V 247
2021-08-01 07:54:57 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:55:57 V 20 35 31.15 +22 20 20.2 14.7 V 247
2021-08-01 07:55:57 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:56:56 V 20 35 31.22 +22 20 25.1 14.6 V 247
2021-08-01 07:56:56 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:57:56 V 20 35 31.33 +22 20 31.3 14.8 V 247
2021-08-01 07:57:56 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:03:59 S 20 33 11.983 +21 36 32.08 – V C57
2021-08-01 08:03:59 s 1 -125251.14 4 +351831.45 5600.0 – C57
2021-08-01 08:05:52 V 20 35 32.17 +22 21 19.1 15.0 V 247
2021-08-01 08:05:52 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:08:51 V 20 35 32.51 +22 21 37.5 15.0 V 247
2021-08-01 08:08:51 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:09:51 V 20 35 32.60 +22 21 43.4 14.6 V 247
2021-08-01 08:09:51 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:10:50 V 20 35 32.72 +22 21 49.5 14.6 V 247
2021-08-01 08:10:50 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:11:50 V 20 35 32.81 +22 21 54.8 14.6 V 247
2021-08-01 08:11:50 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:12:49 V 20 35 32.93 +22 22 01.2 14.7 V 247
2021-08-01 08:12:49 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:13:49 V 20 35 33.03 +22 22 07.1 14.6 V 247
2021-08-01 08:13:49 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:13:59 S 20 33 13.750 +21 37 28.42 – V C57
2021-08-01 08:13:59 s 1 -125565.55 9 +351558.38 640.0 – C57
2021-08-01 08:14:49 V 20 35 33.14 +22 22 13.1 14.4 V 247
2021-08-01 08:14:49 v 1 201.91287 +21.37114 – – 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)