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
2021-06-15 17:54:02 S 16 42 51.511 -69 03 04.72 – V C57
2021-06-15 17:54:02 s 1 +68934.500 0 +383157.82 930.0 – C57
2021-06-15 18:14:02 S 16 42 54.883 -69 03 00.79 – V C57
2021-06-15 18:14:02 s 1 +68246.306 0 +383557.67 4060.0 – C57
2021-06-15 18:24:02 S 16 42 55.994 -69 02 59.82 – V C57
2021-06-15 18:24:02 s 1 +67901.964 0 +383756.21 5230.0 – C57
2021-06-15 18:44:02 S 16 42 59.918 -69 02 57.73 – V C57
2021-06-15 18:44:02 s 1 +67212.795 0 +384150.48 6740.0 – C57
2021-06-15 18:54:02 S 16 43 00.682 -69 02 54.28 – V C57
2021-06-15 18:54:02 s 1 +66867.970 0 +384346.21 7100.0 – C57
2021-06-15 19:04:02 S 16 43 02.873 -69 02 50.89 – V C57
2021-06-15 19:04:02 s 1 +66522.986 0 +384541.02 7210.0 – C57
2021-06-15 20:04:02 S 16 43 13.433 -69 02 52.84 – V C57
2021-06-15 20:04:02 s 1 +64449.805 0 +385690.38 2480.0 – C57
2021-06-15 20:24:02 S 16 43 15.554 -69 02 35.12 – V C57
2021-06-15 20:24:02 s 1 +63757.519 0 +386066.09 8930.0 – C57
2021-06-15 20:34:02 S 16 43 18.154 -69 02 40.06 – V C57
2021-06-15 20:34:02 s 1 +63411.151 0 +386252.55 6790.0 – C57
2021-06-15 20:44:02 S 16 43 19.277 -69 02 37.64 – V C57
2021-06-15 20:44:02 s 1 +63064.635 0 +386438.09 4430.0 – C57
2021-06-15 21:04:02 S 16 43 22.018 -69 02 35.20 – V C57
2021-06-15 21:04:02 s 1 +62371.159 0 +386806.39 8990.0 – C57
2021-06-15 21:14:02 S 16 43 23.926 -69 02 33.25 – V C57
2021-06-15 21:14:02 s 1 +62024.202 0 +386989.16 5940.0 – C57
2021-06-15 21:24:02 S 16 43 25.202 -69 02 32.10 – V C57
2021-06-15 21:24:02 s 1 +61677.100 0 +387171.00 2650.0 – C57
2021-06-15 21:34:02 S 16 43 26.990 -69 02 28.79 – V C57
2021-06-15 21:34:02 s 1 +61329.854 0 +387351.92 9140.0 – C57
2021-06-15 21:44:02 S 16 43 28.524 -69 02 30.26 – V C57
2021-06-15 21:44:02 s 1 +60982.466 0 +387531.92 5420.0 – C57
2021-06-15 22:04:02 S 16 43 31.654 -69 02 30.77 – V C57
2021-06-15 22:04:02 s 1 +60287.265 0 +387889.15 7310.0 – C57
2021-06-15 22:24:02 S 16 43 35.321 -69 02 22.81 – V C57
2021-06-15 22:24:02 s 1 +59591.504 0 +388242.69 8350.0 – C57
2021-06-15 22:34:02 S 16 43 36.338 -69 02 21.77 – V C57
2021-06-15 22:34:02 s 1 +59243.416 0 +388418.09 3560.0 – C57
2021-06-15 22:44:02 S 16 43 38.206 -69 02 19.14 – V C57
2021-06-15 22:44:02 s 1 +58895.191 0 +388592.56 8560.0 – C57
2021-06-15 23:14:02 S 16 43 43.159 -69 02 15.83 – V C57
2021-06-15 23:14:02 s 1 +57849.706 0 +389110.46 2360.0 – C57
2021-06-15 23:24:02 S 16 43 44.474 -69 02 14.17 – V C57
2021-06-15 23:24:02 s 1 +57500.943 0 +389281.26 6560.0 – C57
2021-06-15 23:34:02 S 16 43 46.207 -69 02 12.52 – V C57
2021-06-15 23:34:02 s 1 +57152.048 0 +389451.14 570.0 – C57
2021-06-15 23:54:02 S 16 43 48.828 -69 02 14.46 – V C57
2021-06-15 23:54:02 s 1 +56453.866 0 +389788.15 8030.0 – C57
2021-06-16 00:04:02 S 16 43 51.562 -69 02 07.73 – V C57
2021-06-16 00:04:02 s 1 +56104.581 0 +389955.28 1470.0 – C57
2021-06-16 00:14:02 S 16 43 52.330 -69 02 11.54 – V C57
2021-06-16 00:14:02 s 1 +55755.168 0 +390121.49 4730.0 – 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)