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 18:18:23 V 20 45 24.07 +29 19 53.3 15.2 V 247
2021-08-04 18:18:23 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:19:39 V 20 45 24.14 +29 19 58.7 14.5 V 247
2021-08-04 18:19:39 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:20:38 V 20 45 24.25 +29 20 03.1 14.0 V 247
2021-08-04 18:20:38 v 1 134.17920 +34.51211 – – 247
2021-08-04 18:23:59 S 20 47 01.183 +28 45 47.81 – V C57
2021-08-04 18:23:59 s 1 -198498.34 1 +90676.244 7550.0 – C57
2021-08-04 18:33:59 S 20 47 02.806 +28 46 36.73 – V C57
2021-08-04 18:33:59 s 1 -198328.78 2 +89869.941 2270.0 – C57
2021-08-04 18:43:59 S 20 47 04.306 +28 47 25.19 – V C57
2021-08-04 18:43:59 s 1 -198156.78 1 +89062.538 9190.0 – C57
2021-08-04 19:23:59 S 20 47 10.366 +28 50 41.39 – V C57
2021-08-04 19:23:59 s 1 -197444.06 7 +85821.986 7980.0 – C57
2021-08-04 19:33:59 S 20 47 11.894 +28 51 29.81 – V C57
2021-08-04 19:33:59 s 1 -197259.64 3 +85009.127 5240.0 – C57
2021-08-04 19:43:59 S 20 47 13.411 +28 52 18.59 – V C57
2021-08-04 19:43:59 s 1 -197072.69 2 +84195.187 4430.0 – C57
2021-08-04 19:53:59 S 20 47 14.935 +28 53 07.58 – V C57
2021-08-04 19:53:59 s 1 -196883.20 1 +83380.168 5510.0 – C57
2021-08-04 20:03:59 S 20 47 16.418 +28 53 56.22 – V C57
2021-08-04 20:03:59 s 1 -196691.15 4 +82564.073 8430.0 – C57
2021-08-04 20:13:59 S 20 47 17.981 +28 54 45.14 – V C57
2021-08-04 20:13:59 s 1 -196496.53 7 +81746.907 3150.0 – C57
2021-08-04 20:23:59 S 20 47 19.402 +28 55 33.53 – V C57
2021-08-04 20:23:59 s 1 -196299.33 7 +80928.673 9630.0 – C57
2021-08-04 20:33:59 S 20 47 21.000 +28 56 22.92 – V C57
2021-08-04 20:33:59 s 1 -196099.53 7 +80109.374 7810.0 – C57
2021-08-04 20:43:59 S 20 47 22.476 +28 57 12.46 – V C57
2021-08-04 20:43:59 s 1 -195897.12 3 +79289.015 7650.0 – C57
2021-08-04 20:53:59 S 20 47 24.026 +28 58 01.06 – V C57
2021-08-04 20:53:59 s 1 -195692.08 0 +78467.597 9110.0 – C57
2021-08-04 21:03:59 S 20 47 25.495 +28 58 50.66 – V C57
2021-08-04 21:03:59 s 1 -195484.39 4 +77645.127 2130.0 – C57
2021-08-04 21:13:59 S 20 47 26.976 +28 59 38.54 – V C57
2021-08-04 21:13:59 s 1 -195274.04 8 +76821.607 6670.0 – C57
2021-08-04 21:23:59 S 20 47 28.450 +29 00 27.47 – V C57
2021-08-04 21:23:59 s 1 -195061.02 8 +75997.042 2670.0 – C57
2021-08-04 21:27:04 C 20 45 49.91 +29 33 21.2 – V 089
2021-08-04 21:30:22 C 20 45 50.22 +29 33 35.4 – V 089
2021-08-04 21:33:41 C 20 45 50.52 +29 33 49.9 – V 089
2021-08-04 21:33:59 S 20 47 29.988 +29 01 16.57 – V C57
2021-08-04 21:33:59 s 1 -194845.31 9 +75171.436 100.0 – C57
2021-08-04 21:37:00 C 20 45 50.83 +29 34 03.8 – V 089
2021-08-04 21:40:19 C 20 45 51.13 +29 34 18.1 – V 089
2021-08-04 21:43:38 C 20 45 51.41 +29 34 32.5 – V 089
2021-08-04 21:43:59 S 20 47 31.426 +29 02 04.92 – V C57
2021-08-04 21:43:59 s 1 -194626.90 4 +74344.793 8900.0 – C57
2021-08-04 21:46:57 C 20 45 51.76 +29 34 46.4 – V 089
2021-08-04 21:50:16 C 20 45 52.06 +29 35 00.6 – V 089
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)