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
2021-06-18 16:54:02 S 16 54 52.970 -68 53 22.31 – V C57
2021-06-18 16:54:02 s 1 -81113.905 0 +387875.87 1700.0 – C57
2021-06-18 17:04:02 S 16 54 54.823 -68 53 21.30 – V C57
2021-06-18 17:04:02 s 1 -81449.436 0 +387700.24 4610.0 – C57
2021-06-18 17:14:02 S 16 54 56.494 -68 53 20.76 – V C57
2021-06-18 17:14:02 s 1 -81784.771 0 +387523.73 6840.0 – C57
2021-06-18 17:24:02 S 16 54 58.246 -68 53 20.33 – V C57
2021-06-18 17:24:02 s 1 -82119.908 0 +387346.33 8400.0 – C57
2021-06-18 17:34:02 S 16 54 59.854 -68 53 17.88 – V C57
2021-06-18 17:34:02 s 1 -82454.846 0 +387168.05 9280.0 – C57
2021-06-18 17:44:02 S 16 55 01.958 -68 53 18.89 – V C57
2021-06-18 17:44:02 s 1 -82789.585 0 +386988.90 9480.0 – C57
2021-06-18 17:54:02 S 16 55 03.598 -68 53 15.11 – V C57
2021-06-18 17:54:02 s 1 -83124.123 0 +386808.85 8990.0 – C57
2021-06-18 18:04:02 S 16 55 05.261 -68 53 13.67 – V C57
2021-06-18 18:04:02 s 1 -83458.460 0 +386627.93 7820.0 – C57
2021-06-18 18:14:02 S 16 55 07.063 -68 53 12.41 – V C57
2021-06-18 18:14:02 s 1 -83792.595 0 +386446.12 5970.0 – C57
2021-06-18 18:34:02 S 16 55 10.673 -68 53 11.00 – V C57
2021-06-18 18:34:02 s 1 -84460.253 0 +386079.85 180.0 – C57
2021-06-18 18:44:02 S 16 55 12.396 -68 53 10.00 – V C57
2021-06-18 18:44:02 s 1 -84793.776 0 +385895.38 6250.0 – C57
2021-06-18 18:54:02 S 16 55 14.340 -68 53 08.12 – V C57
2021-06-18 18:54:02 s 1 -85127.092 0 +385710.04 1610.0 – C57
2021-06-18 19:04:02 S 16 55 15.739 -68 53 06.22 – V C57
2021-06-18 19:04:02 s 1 -85460.201 0 +385523.81 6280.0 – C57
2021-06-18 19:14:02 S 16 55 17.707 -68 53 03.80 – V C57
2021-06-18 19:14:02 s 1 -85793.103 0 +385336.69 240.0 – C57
2021-06-18 19:24:02 S 16 55 19.498 -68 53 02.72 – V C57
2021-06-18 19:24:02 s 1 -86125.795 0 +385148.69 3500.0 – C57
2021-06-18 19:34:02 S 16 55 21.103 -68 53 00.46 – V C57
2021-06-18 19:34:02 s 1 -86458.278 0 +384959.80 6050.0 – C57
2021-06-18 19:44:02 S 16 55 22.920 -68 53 01.72 – V C57
2021-06-18 19:44:02 s 1 -86790.551 0 +384770.03 7880.0 – C57
2021-06-18 19:54:02 S 16 55 24.662 -68 53 00.64 – V C57
2021-06-18 19:54:02 s 1 -87122.611 0 +384579.37 9010.0 – C57
2021-06-18 20:04:02 S 16 55 26.796 -68 52 59.52 – V C57
2021-06-18 20:04:02 s 1 -87454.460 0 +384387.83 9420.0 – C57
2021-06-18 20:14:02 S 16 55 27.917 -68 52 58.12 – V C57
2021-06-18 20:14:02 s 1 -87786.094 0 +384195.40 9100.0 – C57
2021-06-18 20:24:02 S 16 55 29.820 -68 52 57.97 – V C57
2021-06-18 20:24:02 s 1 -88117.515 0 +384002.08 8070.0 – C57
2021-06-18 20:34:02 S 16 55 31.627 -68 52 56.24 – V C57
2021-06-18 20:34:02 s 1 -88448.719 0 +383807.87 6310.0 – C57
2021-06-18 20:44:02 S 16 55 33.502 -68 52 50.88 – V C57
2021-06-18 20:44:02 s 1 -88779.708 0 +383612.78 3830.0 – C57
2021-06-18 20:54:02 S 16 55 35.170 -68 52 50.84 – V C57
2021-06-18 20:54:02 s 1 -89110.479 0 +383416.80 620.0 – C57
2021-06-18 21:04:02 S 16 55 37.378 -68 52 49.87 – V C57
2021-06-18 21:04:02 s 1 -89441.033 0 +383219.93 6670.0 – 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)