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
2021-06-19 06:34:02 S 16 57 18.523 -68 51 38.27 – V C57
2021-06-19 06:34:02 s 1 -107890.07 5 +370521.47 2710.0 – C57
2021-06-19 06:44:02 S 16 57 19.901 -68 51 36.79 – V C57
2021-06-19 06:44:02 s 1 -108206.28 1 +370272.59 1570.0 – C57
2021-06-19 06:54:02 S 16 57 21.821 -68 51 36.83 – V C57
2021-06-19 06:54:02 s 1 -108522.20 9 +370022.81 9520.0 – C57
2021-06-19 07:04:02 S 16 57 23.498 -68 51 34.70 – V C57
2021-06-19 07:04:02 s 1 -108837.85 9 +369772.13 6580.0 – C57
2021-06-19 07:14:02 S 16 57 25.594 -68 51 34.60 – V C57
2021-06-19 07:14:02 s 1 -109153.22 8 +369520.53 2730.0 – C57
2021-06-19 07:24:02 S 16 57 27.269 -68 51 32.33 – V C57
2021-06-19 07:24:02 s 1 -109468.31 6 +369268.03 7970.0 – C57
2021-06-19 07:34:02 S 16 57 29.047 -68 51 31.50 – V C57
2021-06-19 07:34:02 s 1 -109783.12 2 +369014.62 2300.0 – C57
2021-06-19 07:44:02 S 16 57 30.826 -68 51 30.10 – V C57
2021-06-19 07:44:02 s 1 -110097.64 5 +368760.30 5720.0 – C57
2021-06-19 07:54:02 S 16 57 32.287 -68 51 30.02 – V C57
2021-06-19 07:54:02 s 1 -110411.88 4 +368505.07 8210.0 – C57
2021-06-19 08:04:02 S 16 57 34.498 -68 51 26.57 – V C57
2021-06-19 08:04:02 s 1 -110725.83 7 +368248.94 9790.0 – C57
2021-06-19 08:24:02 S 16 57 38.179 -68 51 25.81 – V C57
2021-06-19 08:24:02 s 1 -111352.88 3 +367733.93 160.0 – C57
2021-06-19 12:24:02 S 16 58 20.837 -68 50 54.31 – V C57
2021-06-19 12:24:02 s 1 -118784.78 9 +361268.92 7170.0 – C57
2021-06-19 12:34:02 S 16 58 22.937 -68 50 53.27 – V C57
2021-06-19 12:34:02 s 1 -119090.61 2 +360988.08 2680.0 – C57
2021-06-19 12:44:02 S 16 58 23.820 -68 50 51.68 – V C57
2021-06-19 12:44:02 s 1 -119396.11 8 +360706.32 7180.0 – C57
2021-06-19 13:04:02 S 16 58 27.732 -68 50 47.40 – V C57
2021-06-19 13:04:02 s 1 -120006.17 3 +360140.04 3120.0 – C57
2021-06-19 13:14:02 S 16 58 29.822 -68 50 47.47 – V C57
2021-06-19 13:14:02 s 1 -120310.72 1 +359855.51 4570.0 – C57
2021-06-19 13:24:02 S 16 58 31.188 -68 50 47.04 – V C57
2021-06-19 13:24:02 s 1 -120614.94 6 +359570.07 4990.0 – C57
2021-06-19 13:34:02 S 16 58 33.295 -68 50 45.92 – V C57
2021-06-19 13:34:02 s 1 -120918.84 8 +359283.69 4380.0 – C57
2021-06-19 13:44:02 S 16 58 34.918 -68 50 43.76 – V C57
2021-06-19 13:44:02 s 1 -121222.42 5 +358996.40 2740.0 – C57
2021-06-19 13:54:02 S 16 58 36.461 -68 50 42.11 – V C57
2021-06-19 13:54:02 s 1 -121525.67 7 +358708.18 60.0 – C57
2021-06-19 14:24:02 S 16 58 42.098 -68 50 39.26 – V C57
2021-06-19 14:24:02 s 1 -122433.46 8 +357837.98 5790.0 – C57
2021-06-19 14:34:02 S 16 58 43.800 -68 50 38.36 – V C57
2021-06-19 14:34:02 s 1 -122735.40 6 +357546.06 8940.0 – C57
2021-06-19 14:44:02 S 16 58 45.931 -68 50 37.50 – V C57
2021-06-19 14:44:02 s 1 -123037.01 2 +357253.21 1040.0 – C57
2021-06-19 14:54:02 S 16 58 47.585 -68 50 35.92 – V C57
2021-06-19 14:54:02 s 1 -123338.28 6 +356959.44 2080.0 – C57
2021-06-19 15:04:02 S 16 58 49.284 -68 50 35.70 – V C57
2021-06-19 15:04:02 s 1 -123639.22 5 +356664.74 2060.0 – 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)