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
2021-08-04 12:25:51 V 20 44 45.07 +28 54 34.5 15.4 V 247
2021-08-04 12:25:51 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:27:50 V 20 44 45.26 +28 54 43.3 15.9 V 247
2021-08-04 12:27:50 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:28:50 V 20 44 45.32 +28 54 47.5 15.3 V 247
2021-08-04 12:28:50 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:29:49 V 20 44 45.41 +28 54 51.6 14.8 V 247
2021-08-04 12:29:49 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:30:49 V 20 44 45.50 +28 54 56.2 14.4 V 247
2021-08-04 12:30:49 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:33:48 V 20 44 45.78 +28 55 09.7 14.2 V 247
2021-08-04 12:33:48 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:33:59 S 20 46 07.006 +28 17 15.83 – V C57
2021-08-04 12:33:59 s 1 -202992.38 3 +118186.11 7500.0 – C57
2021-08-04 12:34:47 V 20 44 45.84 +28 55 13.3 14.3 V 247
2021-08-04 12:34:47 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:35:47 V 20 44 45.95 +28 55 18.7 14.8 V 247
2021-08-04 12:35:47 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:36:46 V 20 44 46.03 +28 55 22.9 15.7 V 247
2021-08-04 12:36:46 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:39:45 V 20 44 46.30 +28 55 35.2 14.5 V 247
2021-08-04 12:39:45 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:40:16 V 20 44 52.98 +28 55 17.0 14.3 V 247
2021-08-04 12:40:16 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:40:45 V 20 44 46.41 +28 55 39.8 14.6 V 247
2021-08-04 12:40:45 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:41:15 V 20 44 53.09 +28 55 21.2 14.2 V 247
2021-08-04 12:41:15 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:41:44 V 20 44 46.44 +28 55 44.5 14.3 V 247
2021-08-04 12:41:44 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:42:15 V 20 44 53.17 +28 55 25.8 14.7 V 247
2021-08-04 12:42:15 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:43:14 V 20 44 53.25 +28 55 30.3 15.1 V 247
2021-08-04 12:43:14 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:43:59 S 20 46 08.585 +28 18 05.33 – V C57
2021-08-04 12:43:59 s 1 -202900.49 7 +117419.65 610.0 – C57
2021-08-04 12:44:14 V 20 44 53.35 +28 55 34.7 15.1 V 247
2021-08-04 12:44:14 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:45:14 V 20 44 53.45 +28 55 39.4 15.7 V 247
2021-08-04 12:45:14 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:46:13 V 20 44 53.54 +28 55 43.8 15.6 V 247
2021-08-04 12:46:13 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:46:20 V 20 44 46.93 +28 56 03.2 14.8 V 247
2021-08-04 12:46:20 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:47:13 V 20 44 53.63 +28 55 48.2 15.3 V 247
2021-08-04 12:47:13 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:47:20 V 20 44 47.02 +28 56 07.2 15.0 V 247
2021-08-04 12:47:20 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:48:12 V 20 44 53.72 +28 55 52.8 15.1 V 247
2021-08-04 12:48:12 v 1 134.17920 +34.51211 – – 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)