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 17:51:35 V 20 45 21.41 +29 17 59.8 14.9 V 247
2021-08-04 17:51:35 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:52:35 V 20 45 21.52 +29 18 04.0 14.8 V 247
2021-08-04 17:52:35 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:53:34 V 20 45 21.61 +29 18 08.4 15.3 V 247
2021-08-04 17:53:34 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:53:59 S 20 46 56.664 +28 43 21.65 – V C57
2021-08-04 17:53:59 s 1 -198992.49 2 +93088.524 6990.0 – C57
2021-08-04 17:54:34 V 20 45 21.69 +29 18 13.1 14.6 V 247
2021-08-04 17:54:34 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:55:33 V 20 45 21.78 +29 18 16.5 14.6 V 247
2021-08-04 17:55:33 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:56:33 V 20 45 21.89 +29 18 21.1 14.6 V 247
2021-08-04 17:56:33 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:57:32 V 20 45 22.00 +29 18 25.4 15.0 V 247
2021-08-04 17:57:32 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:59:32 V 20 45 22.18 +29 18 33.6 15.3 V 247
2021-08-04 17:59:32 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:00:31 V 20 45 22.27 +29 18 37.8 15.4 V 247
2021-08-04 18:00:31 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:01:31 V 20 45 22.36 +29 18 41.8 15.1 V 247
2021-08-04 18:01:31 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:02:30 V 20 45 22.47 +29 18 46.2 14.7 V 247
2021-08-04 18:02:30 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:03:30 V 20 45 22.56 +29 18 50.1 14.7 V 247
2021-08-04 18:03:30 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:03:59 S 20 46 58.159 +28 44 11.33 – V C57
2021-08-04 18:03:59 s 1 -198830.18 2 +92285.538 4870.0 – C57
2021-08-04 18:04:29 V 20 45 22.65 +29 18 54.5 14.8 V 247
2021-08-04 18:04:29 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:05:29 V 20 45 22.75 +29 18 58.9 14.7 V 247
2021-08-04 18:05:29 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:08:24 V 20 45 23.04 +29 19 11.2 15.0 V 247
2021-08-04 18:08:24 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:09:23 V 20 45 23.14 +29 19 15.4 15.1 V 247
2021-08-04 18:09:23 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:10:23 V 20 45 23.23 +29 19 19.2 15.3 V 247
2021-08-04 18:10:23 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:11:22 V 20 45 23.32 +29 19 23.3 15.1 V 247
2021-08-04 18:11:22 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:12:22 V 20 45 23.42 +29 19 27.3 15.0 V 247
2021-08-04 18:12:22 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:13:22 V 20 45 23.54 +29 19 32.3 14.5 V 247
2021-08-04 18:13:22 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:13:59 S 20 46 59.726 +28 44 59.28 – V C57
2021-08-04 18:13:59 s 1 -198665.47 0 +91481.443 5070.0 – C57
2021-08-04 18:14:21 V 20 45 23.63 +29 19 36.1 14.7 V 247
2021-08-04 18:14:21 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:15:21 V 20 45 23.71 +29 19 40.2 15.0 V 247
2021-08-04 18:15:21 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)