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
2021-06-21 14:14:02 S 17 07 08.854 -68 44 59.53 – V C57
2021-06-21 14:14:02 s 1 -189324.52 4 +233579.44 4190.0 – C57
2021-06-21 14:24:02 S 17 07 10.505 -68 45 00.11 – V C57
2021-06-21 14:24:02 s 1 -189459.21 4 +232993.29 6980.0 – C57
2021-06-21 14:34:02 S 17 07 12.478 -68 44 56.83 – V C57
2021-06-21 14:34:02 s 1 -189592.94 3 +232405.98 6890.0 – C57
2021-06-21 14:54:02 S 17 07 15.696 -68 44 57.08 – V C57
2021-06-21 14:54:02 s 1 -189857.50 4 +231227.88 8030.0 – C57
2021-06-21 15:04:02 S 17 07 17.299 -68 44 54.85 – V C57
2021-06-21 15:04:02 s 1 -189988.32 6 +230637.08 9240.0 – C57
2021-06-21 15:34:02 S 17 07 22.267 -68 44 50.53 – V C57
2021-06-21 15:34:02 s 1 -190374.91 6 +228857.70 5280.0 – C57
2021-06-21 15:44:02 S 17 07 24.218 -68 44 50.64 – V C57
2021-06-21 15:44:02 s 1 -190501.80 6 +228262.24 4720.0 – C57
2021-06-21 16:04:02 S 17 07 27.600 -68 44 47.54 – V C57
2021-06-21 16:04:02 s 1 -190752.60 0 +227067.80 4680.0 – C57
2021-06-21 16:14:02 S 17 07 29.311 -68 44 46.90 – V C57
2021-06-21 16:14:02 s 1 -190876.49 7 +226468.83 5170.0 – C57
2021-06-21 16:24:02 S 17 07 30.758 -68 44 46.54 – V C57
2021-06-21 16:24:02 s 1 -190999.38 7 +225868.68 2650.0 – C57
2021-06-21 16:34:02 S 17 07 32.506 -68 44 45.42 – V C57
2021-06-21 16:34:02 s 1 -191121.26 6 +225267.36 7100.0 – C57
2021-06-21 16:44:02 S 17 07 34.090 -68 44 43.91 – V C57
2021-06-21 16:44:02 s 1 -191242.13 1 +224664.86 8530.0 – C57
2021-06-21 16:54:02 S 17 07 35.868 -68 44 43.91 – V C57
2021-06-21 16:54:02 s 1 -191361.97 6 +224061.19 6900.0 – C57
2021-06-21 17:04:02 S 17 07 37.730 -68 44 43.30 – V C57
2021-06-21 17:04:02 s 1 -191480.79 8 +223456.34 2220.0 – C57
2021-06-21 17:14:02 S 17 07 39.370 -68 44 41.86 – V C57
2021-06-21 17:14:02 s 1 -191598.59 1 +222850.31 4470.0 – C57
2021-06-21 17:24:02 S 17 07 40.752 -68 44 38.40 – V C57
2021-06-21 17:24:02 s 1 -191715.35 3 +222243.11 3630.0 – C57
2021-06-21 17:34:02 S 17 07 42.612 -68 44 39.12 – V C57
2021-06-21 17:34:02 s 1 -191831.07 7 +221634.72 9690.0 – C57
2021-06-21 17:44:02 S 17 07 44.285 -68 44 36.35 – V C57
2021-06-21 17:44:02 s 1 -191945.76 1 +221025.14 2650.0 – C57
2021-06-21 17:54:02 S 17 07 45.799 -68 44 34.33 – V C57
2021-06-21 17:54:02 s 1 -192059.39 8 +220414.39 2470.0 – C57
2021-06-21 18:04:02 S 17 07 48.245 -68 44 33.97 – V C57
2021-06-21 18:04:02 s 1 -192171.98 6 +219802.45 9170.0 – C57
2021-06-21 18:14:02 S 17 07 49.322 -68 44 33.97 – V C57
2021-06-21 18:14:02 s 1 -192283.51 8 +219189.32 2710.0 – C57
2021-06-21 18:24:02 S 17 07 50.820 -68 44 34.84 – V C57
2021-06-21 18:24:02 s 1 -192393.99 2 +218575.01 3090.0 – C57
2021-06-21 18:34:02 S 17 07 52.644 -68 44 34.37 – V C57
2021-06-21 18:34:02 s 1 -192503.40 1 +217959.51 290.0 – C57
2021-06-21 18:44:02 S 17 07 54.175 -68 44 31.67 – V C57
2021-06-21 18:44:02 s 1 -192611.74 1 +217342.82 4310.0 – C57
2021-06-21 19:04:02 S 17 07 58.692 -68 44 22.63 – V C57
2021-06-21 19:04:02 s 1 -192825.19 8 +216105.86 2710.0 – C57
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)