2009 FF

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4684189057 ± 1.36e-08
Semi-major axis (a)1.4733289794 AU ± 1.69e-09
Inclination (i)0.97928952° ± 7.33e-08
Long. of Asc. Node (Ω)263.35747356° ± 5.97e-05
Arg. of Perihelion (ω)13.53887129° ± 6.05e-05
Mean Anomaly (M)66.34430722° ± 3.37e-07
Mean Motion (n)0.5511409485°/day ± 9.47e-10
Perihelion dist (q)0.78319383 AU ± 2.01e-08
Aphelion dist (Q)2.16346413 AU ± 2.02e-08
Orbital Period1.78833797 yr ± 3.07e-09
NGA Modelr2
A2-4.06381871e-14 ± 1.97e-15 AU/d²
Physical Parameters
H (abs. magnitude)21.97
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.178″
Uncertainty0
Orbit TypeApollo
MOID0.014589 AU
Observations Used568
Radar Obs Used7
Oppositions18
Arc Total1984-2025
First Observation Used1984-04-05
Last Observation Used2025-11-11
Observations (620)
Date Type RA Dec Mag Band Observatory
2025-10-19 05:13:06 C 23 55 38.744 +03 28 26.87 V G96
2025-10-19 13:15:36 C 23 55 49.851 +03 27 03.64 W O18
2025-10-19 15:26:32 C 23 55 51.907 +03 26 42.66 W O18
2025-10-20 13:20:41 C 23 56 21.404 +03 23 21.51 W O18
2025-10-20 17:36:33 C 23 56 25.617 +03 22 44.84 W O18
2025-10-21 13:12:26 C 23 56 53.758 +03 20 06.84 W O18
2025-10-21 14:16:34 C 23 56 54.893 +03 19 58.97 W O18
2025-10-21 15:23:09 C 23 56 56.047 +03 19 50.59 W O18
2025-10-23 13:08:10 C 23 58 01.864 +03 14 49.37 W O18
2025-10-23 14:12:18 C 23 58 03.121 +03 14 43.60 W O18
2025-10-26 13:16:30 C 23 59 52.467 +03 09 41.36 W O18
2025-10-26 14:18:59 C 23 59 53.835 +03 09 38.31 W O18
2025-10-27 13:04:46 C 00 00 31.201 +03 08 40.79 W O18
2025-10-27 15:16:31 C 00 00 34.189 +03 08 36.43 W O18
2025-10-28 13:12:33 C 00 01 11.470 +03 07 58.84 W O18
2025-10-28 14:16:32 C 00 01 12.979 +03 07 57.71 W O18
2025-10-29 13:09:26 C 00 01 52.594 +03 07 36.07 W O18
2025-10-29 14:17:58 C 00 01 54.280 +03 07 35.60 W O18
2025-11-11 13:04:51 C 00 12 20.750 +03 26 14.27 W O18
2025-11-11 16:59:52 C 00 12 28.873 +03 26 41.91 W O18
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2025-09-11 03:50:00 168340.5 1 Hz 8560 -14 -14
2025-09-11 04:10:00 164369.3 0.5 Hz 8560 -14 -14
2025-09-11 04:20:00 17880158 10 us 8560 -14 -14
2025-09-11 04:50:00 17846629.1 0.2 us 8560 -14 -14
2025-09-12 23:30:00 -337977.158 0.5 Hz 8560 -14 -14
2025-09-13 00:00:00 19815188.89 0.3 us 8560 -14 -14
2025-09-13 03:20:00 -370953.343 0.5 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)