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 12:48:20 V 20 44 47.11 +28 56 10.9 15.3 V 247
2021-08-04 12:48:20 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:49:12 V 20 44 53.81 +28 55 57.2 15.0 V 247
2021-08-04 12:49:12 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:49:19 V 20 44 47.20 +28 56 15.3 15.3 V 247
2021-08-04 12:49:19 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:50:11 V 20 44 53.91 +28 56 01.4 15.1 V 247
2021-08-04 12:50:11 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:50:19 V 20 44 47.31 +28 56 19.8 15.4 V 247
2021-08-04 12:50:19 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:51:11 V 20 44 53.99 +28 56 06.1 15.2 V 247
2021-08-04 12:51:11 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:51:18 V 20 44 47.37 +28 56 24.4 15.6 V 247
2021-08-04 12:51:18 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:52:11 V 20 44 54.09 +28 56 10.7 15.6 V 247
2021-08-04 12:52:11 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:52:18 V 20 44 47.48 +28 56 28.1 15.6 V 247
2021-08-04 12:52:18 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:53:10 V 20 44 54.19 +28 56 15.4 16.1 V 247
2021-08-04 12:53:10 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:53:17 V 20 44 47.59 +28 56 33.7 15.5 V 247
2021-08-04 12:53:17 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:53:59 S 20 46 10.140 +28 18 54.32 – V C57
2021-08-04 12:53:59 s 1 -202806.58 5 +116652.02 7240.0 – C57
2021-08-04 12:54:17 V 20 44 47.64 +28 56 37.7 15.6 V 247
2021-08-04 12:54:17 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:55:17 V 20 44 47.75 +28 56 42.5 15.2 V 247
2021-08-04 12:55:17 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:56:16 V 20 44 47.86 +28 56 46.1 15.2 V 247
2021-08-04 12:56:16 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:57:08 V 20 44 54.54 +28 56 32.9 15.7 V 247
2021-08-04 12:57:08 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:57:16 V 20 44 47.92 +28 56 50.4 15.1 V 247
2021-08-04 12:57:16 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:58:08 V 20 44 54.65 +28 56 37.4 14.8 V 247
2021-08-04 12:58:08 v 1 134.17920 +34.51211 – – 247
2021-08-04 12:58:15 V 20 44 48.02 +28 56 54.1 15.0 V 247
2021-08-04 12:58:15 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:59:15 V 20 44 48.12 +28 56 58.9 15.4 V 247
2021-08-04 12:59:15 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:00:07 V 20 44 54.82 +28 56 46.4 15.8 V 247
2021-08-04 13:00:07 v 1 134.17920 +34.51211 – – 247
2021-08-04 13:00:14 V 20 44 48.22 +28 57 03.3 15.5 V 247
2021-08-04 13:00:14 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:01:14 V 20 44 48.32 +28 57 07.5 15.2 V 247
2021-08-04 13:01:14 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:02:14 V 20 44 48.40 +28 57 11.7 15.2 V 247
2021-08-04 13:02:14 v 1 201.91294 +21.37124 – – 247
2021-08-04 13:03:13 V 20 44 48.51 +28 57 16.2 16.1 V 247
2021-08-04 13:03:13 v 1 201.91294 +21.37124 – – 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)