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
2021-06-23 16:24:02 S 17 14 12.708 -68 39 41.51 – V C57
2021-06-23 16:24:02 s 1 -153943.07 8 + 1800.074 3350.0 – C57
2021-06-23 16:34:02 S 17 14 13.250 -68 39 40.21 – V C57
2021-06-23 16:34:02 s 1 -153371.06 7 + 873.042 9400.0 – C57
2021-06-23 16:44:02 S 17 14 14.042 -68 39 38.56 – V C57
2021-06-23 16:44:02 s 1 -152793.62 0 - 54.018 0.0 – C57
2021-06-23 16:54:02 S 17 14 14.959 -68 39 37.76 – V C57
2021-06-23 16:54:02 s 1 -152210.69 6 - 981.074 5040.0 – C57
2021-06-23 17:04:02 S 17 14 15.890 -68 39 34.20 – V C57
2021-06-23 17:04:02 s 1 -151622.25 2 - 1908.092 4400.0 – C57
2021-06-23 17:14:02 S 17 14 16.632 -68 39 33.05 – V C57
2021-06-23 17:14:02 s 1 -151028.24 7 - 2835.037 7980.0 – C57
2021-06-23 17:24:02 S 17 14 17.340 -68 39 31.57 – V C57
2021-06-23 17:24:02 s 1 -150428.63 6 - 3761.876 5640.0 – C57
2021-06-23 17:34:02 S 17 14 18.182 -68 39 29.27 – V C57
2021-06-23 17:34:02 s 1 -149823.37 8 - 4688.570 7280.0 – C57
2021-06-23 17:44:02 S 17 14 18.994 -68 39 28.62 – V C57
2021-06-23 17:44:02 s 1 -149212.42 8 - 5615.085 2780.0 – C57
2021-06-23 18:04:02 S 17 14 20.472 -68 39 24.52 – V C57
2021-06-23 18:04:02 s 1 -147973.28 0 - 7467.423 4890.0 – C57
2021-06-23 18:34:02 S 17 14 22.610 -68 39 18.04 – V C57
2021-06-23 18:34:02 s 1 -146070.77 2 -10243.609 4040.0 – C57
2021-06-23 18:44:02 S 17 14 23.196 -68 39 13.68 – V C57
2021-06-23 18:44:02 s 1 -145424.74 8 -11168.222 200.0 – C57
2021-06-23 18:54:02 S 17 14 23.830 -68 39 14.15 – V C57
2021-06-23 18:54:02 s 1 -144772.72 0 -12092.373 9380.0 – C57
2021-06-23 19:04:02 S 17 14 24.362 -68 39 12.74 – V C57
2021-06-23 19:04:02 s 1 -144114.64 4 -13016.017 1460.0 – C57
2021-06-23 19:24:02 S 17 14 25.886 -68 39 08.06 – V C57
2021-06-23 19:24:02 s 1 -142780.16 1 -14861.604 3820.0 – C57
2021-06-23 19:34:02 S 17 14 26.909 -68 39 07.42 – V C57
2021-06-23 19:34:02 s 1 -142103.66 1 -15783.454 3860.0 – C57
2021-06-23 19:54:02 S 17 14 27.962 -68 39 03.24 – V C57
2021-06-23 19:54:02 s 1 -140731.91 4 -17625.025 1010.0 – C57
2021-06-23 20:04:02 S 17 14 28.411 -68 38 59.68 – V C57
2021-06-23 20:04:02 s 1 -140036.57 1 -18544.646 7880.0 – C57
2021-06-23 21:34:02 S 17 14 33.852 -68 38 39.77 – V C57
2021-06-23 21:34:02 s 1 -133485.83 7 -26776.620 5670.0 – C57
2021-06-23 22:04:02 S 17 14 35.359 -68 38 32.82 – V C57
2021-06-23 22:04:02 s 1 -131181.42 7 -29498.203 2050.0 – C57
2021-06-23 22:24:02 S 17 14 36.209 -68 38 28.72 – V C57
2021-06-23 22:24:02 s 1 -129610.45 0 -31304.884 9000.0 – C57
2021-06-23 22:34:02 S 17 14 36.756 -68 38 26.34 – V C57
2021-06-23 22:34:02 s 1 -128814.40 4 -32205.705 2900.0 – C57
2021-06-23 22:44:02 S 17 14 37.342 -68 38 22.92 – V C57
2021-06-23 22:44:02 s 1 -128011.25 3 -33104.751 6920.0 – C57
2021-06-23 23:54:02 S 17 14 40.512 -68 38 05.35 – V C57
2021-06-23 23:54:02 s 1 -122186.17 5 -39341.986 7680.0 – C57
2021-06-24 00:24:02 S 17 14 41.779 -68 37 54.98 – V C57
2021-06-24 00:24:02 s 1 -119578.28 2 -41980.576 5820.0 – 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)