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 12:03:59 S 20 46 02.340 +28 14 50.50 – V C57
2021-08-04 12:03:59 s 1 -203255.99 4 +120478.49 9590.0 – C57
2021-08-04 12:04:01 V 20 44 43.11 +28 52 58.8 14.7 V 247
2021-08-04 12:04:01 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:05:00 V 20 44 43.20 +28 53 03.4 14.9 V 247
2021-08-04 12:05:00 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:06:00 V 20 44 43.28 +28 53 07.6 14.8 V 247
2021-08-04 12:06:00 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:06:59 V 20 44 43.36 +28 53 12.1 14.8 V 247
2021-08-04 12:06:59 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:07:59 V 20 44 43.45 +28 53 16.6 14.9 V 247
2021-08-04 12:07:59 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:08:59 V 20 44 43.52 +28 53 20.5 14.8 V 247
2021-08-04 12:08:59 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:09:58 V 20 44 43.63 +28 53 25.0 15.1 V 247
2021-08-04 12:09:58 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:10:58 V 20 44 43.74 +28 53 28.8 15.5 V 247
2021-08-04 12:10:58 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:11:57 V 20 44 43.82 +28 53 33.9 15.1 V 247
2021-08-04 12:11:57 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:12:57 V 20 44 43.89 +28 53 38.4 14.8 V 247
2021-08-04 12:12:57 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:13:56 V 20 44 44.00 +28 53 42.5 14.7 V 247
2021-08-04 12:13:56 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:13:59 S 20 46 03.924 +28 15 38.95 – V C57
2021-08-04 12:13:59 s 1 -203170.12 1 +119715.53 1960.0 – C57
2021-08-04 12:14:56 V 20 44 44.08 +28 53 46.8 14.3 V 247
2021-08-04 12:14:56 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:15:56 V 20 44 44.15 +28 53 51.3 14.1 V 247
2021-08-04 12:15:56 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:16:55 V 20 44 44.24 +28 53 55.6 14.0 V 247
2021-08-04 12:16:55 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:17:55 V 20 44 44.33 +28 53 59.9 14.0 V 247
2021-08-04 12:17:55 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:18:54 V 20 44 44.42 +28 54 04.1 14.2 V 247
2021-08-04 12:18:54 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:19:54 V 20 44 44.53 +28 54 08.6 14.7 V 247
2021-08-04 12:19:54 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:20:53 V 20 44 44.61 +28 54 12.8 14.9 V 247
2021-08-04 12:20:53 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:21:53 V 20 44 44.69 +28 54 17.1 15.7 V 247
2021-08-04 12:21:53 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:22:52 V 20 44 44.78 +28 54 21.5 15.7 V 247
2021-08-04 12:22:52 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:23:52 V 20 44 44.89 +28 54 25.9 15.3 V 247
2021-08-04 12:23:52 v 1 201.91294 +21.37124 – – 247
2021-08-04 12:23:59 S 20 46 05.486 +28 16 27.55 – V C57
2021-08-04 12:23:59 s 1 -203082.25 4 +118951.40 7940.0 – C57
2021-08-04 12:24:52 V 20 44 44.96 +28 54 30.4 15.7 V 247
2021-08-04 12:24:52 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)