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
2021-05-31 11:34:03 S 16 18 11.750 -67 43 27.91 – V C57
2021-05-31 11:34:03 s 1 +101158.87 7 +358080.86 6290.0 – C57
2021-05-31 11:44:03 S 16 18 12.202 -67 43 39.58 – V C57
2021-05-31 11:44:03 s 1 +100839.15 0 +358376.31 8000.0 – C57
2021-05-31 11:54:03 S 16 18 13.073 -67 43 36.05 – V C57
2021-05-31 11:54:03 s 1 +100519.13 9 +358670.77 9150.0 – C57
2021-05-31 12:24:03 S 16 18 14.926 -67 43 50.45 – V C57
2021-05-31 12:24:03 s 1 +99557.417 0 +359548.27 9160.0 – C57
2021-05-31 12:34:03 S 16 18 15.727 -67 43 57.76 – V C57
2021-05-31 12:34:03 s 1 +99236.284 0 +359838.81 8040.0 – C57
2021-05-31 12:44:03 S 16 18 17.143 -67 44 02.04 – V C57
2021-05-31 12:44:03 s 1 +98914.874 0 +360128.36 6350.0 – C57
2021-05-31 12:54:03 S 16 18 17.388 -67 44 03.88 – V C57
2021-05-31 12:54:03 s 1 +98593.250 0 +360416.99 4690.0 – C57
2021-05-31 13:44:03 S 16 18 20.402 -67 44 30.70 – V C57
2021-05-31 13:44:03 s 1 +96983.410 0 +361847.30 9700.0 – C57
2021-05-31 13:54:03 S 16 18 21.350 -67 44 31.74 – V C57
2021-05-31 13:54:03 s 1 +96660.101 0 +362130.02 4170.0 – C57
2021-05-31 14:04:03 S 16 18 22.066 -67 44 36.35 – V C57
2021-05-31 14:04:03 s 1 +96336.526 0 +362411.77 8100.0 – C57
2021-05-31 14:44:03 S 16 18 24.571 -67 44 54.92 – V C57
2021-05-31 14:44:03 s 1 +95039.579 0 +363529.05 8570.0 – C57
2021-05-31 16:04:03 S 16 18 29.446 -67 45 31.25 – V C57
2021-05-31 16:04:03 s 1 +92433.250 0 +365717.02 4800.0 – C57
2021-05-31 18:34:03 S 16 18 40.958 -67 46 33.42 – V C57
2021-05-31 18:34:03 s 1 +87503.594 0 +369653.13 3590.0 – C57
2021-05-31 18:54:03 S 16 18 41.741 -67 46 47.86 – V C57
2021-05-31 18:54:03 s 1 +86842.259 0 +370161.64 3550.0 – C57
2021-05-31 19:14:03 S 16 18 43.234 -67 46 59.12 – V C57
2021-05-31 19:14:03 s 1 +86180.002 0 +370666.33 1730.0 – C57
2021-05-31 19:24:03 S 16 18 42.996 -67 47 00.89 – V C57
2021-05-31 19:24:03 s 1 +85848.531 0 +370917.24 160.0 – C57
2021-05-31 19:54:03 S 16 18 45.708 -67 47 15.50 – V C57
2021-05-31 19:54:03 s 1 +84852.758 0 +371664.26 2840.0 – C57
2021-05-31 20:24:03 S 16 18 47.707 -67 47 23.10 – V C57
2021-05-31 20:24:03 s 1 +83854.972 0 +372402.72 1670.0 – C57
2021-05-31 20:54:03 S 16 18 50.270 -67 47 40.52 – V C57
2021-05-31 20:54:03 s 1 +82855.203 0 +373132.63 6720.0 – C57
2021-05-31 21:24:03 S 16 18 51.888 -67 47 53.34 – V C57
2021-05-31 21:24:03 s 1 +81853.481 0 +373854.01 8060.0 – C57
2021-05-31 21:44:03 S 16 18 53.911 -67 48 05.87 – V C57
2021-05-31 21:44:03 s 1 +81184.598 0 +374330.19 3600.0 – C57
2021-05-31 22:04:03 S 16 18 54.646 -67 48 11.59 – V C57
2021-05-31 22:04:03 s 1 +80514.869 0 +374802.59 7550.0 – C57
2021-05-31 23:04:03 S 16 18 58.426 -67 48 36.94 – V C57
2021-05-31 23:04:03 s 1 +78500.698 0 +376197.16 60.0 – C57
2021-05-31 23:34:03 S 16 19 01.198 -67 48 53.86 – V C57
2021-05-31 23:34:03 s 1 +77490.864 0 +376881.74 6190.0 – C57
2021-05-31 23:54:03 S 16 19 02.081 -67 49 02.28 – V C57
2021-05-31 23:54:03 s 1 +76816.643 0 +377333.42 1770.0 – 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)