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
2025-09-17 20:35:21 C 23 35 18.01 +20 46 22.5 V M32
2025-09-17 20:36:54 C 23 35 18.17 +20 46 10.8 V M32
2025-09-17 20:38:27 C 23 35 18.28 +20 45 59.2 V M32
2025-09-17 20:40:01 C 23 35 18.43 +20 45 46.9 V M32
2025-09-17 20:41:33 C 23 35 18.56 +20 45 35.3 V M32
2025-09-17 20:50:13 C 23 35 20.27 +20 44 22.7 Y 557
2025-09-17 21:20:45 C 23 35 23.02 +20 40 31.5 Y 557
2025-09-17 21:50:45 C 23 35 25.66 +20 36 45.0 Y 557
2025-09-17 21:50:55 B 23 35 26.52 +20 36 54.2 V 130
2025-09-17 21:51:56 B 23 35 26.60 +20 36 47.1 V 130
2025-09-17 21:53:12 B 23 35 26.72 +20 36 37.6 V 130
2025-09-17 21:54:28 B 23 35 26.88 +20 36 27.3 V 130
2025-09-17 22:20:55 C 23 35 28.25 +20 32 57.8 Y 557
2025-09-18 07:31:37 C 23 36 37.096 +19 28 24.39 X F52
2025-09-18 07:48:10 C 23 36 38.226 +19 26 33.84 X F52
2025-09-18 08:04:44 C 23 36 39.312 +19 24 44.32 X F52
2025-09-18 08:21:20 C 23 36 40.374 +19 22 53.59 X F52
2025-09-18 11:06:18 C 23 36 49.865 +19 04 41.77 V T05
2025-09-18 11:11:05 C 23 36 50.124 +19 04 10.81 V T05
2025-09-18 12:00:01 C 23 36 52.968 +18 58 47.89 V T05
2025-09-18 12:12:46 C 23 36 53.736 +18 57 23.98 V T05
2025-09-18 18:33:04 C 23 37 42.55 +18 16 18.3 Y 557
2025-09-18 18:34:17 B 23 37 43.639 +18 16 21.65 V 160
2025-09-18 18:38:02 B 23 37 43.944 +18 15 59.33 V 160
2025-09-18 18:41:44 B 23 37 44.242 +18 15 37.55 V 160
2025-09-18 18:58:39 C 23 37 44.53 +18 13 47.6 Y 557
2025-09-18 19:31:16 C 23 37 46.93 +18 10 35.6 Y 557
2025-09-18 20:01:13 C 23 37 49.02 +18 07 40.2 Y 557
2025-09-18 20:02:19 C 23 37 48.44 +18 07 39.7 V M32
2025-09-18 20:04:13 C 23 37 48.57 +18 07 28.6 V M32
2025-09-18 20:06:07 C 23 37 48.68 +18 07 17.5 V M32
2025-09-18 20:08:00 C 23 37 48.82 +18 07 06.4 V M32
2025-09-18 20:09:54 C 23 37 48.93 +18 06 55.2 V M32
2025-09-18 20:30:39 C 23 37 50.99 +18 04 47.8 Y 557
2025-09-18 21:00:37 C 23 37 52.92 +18 01 53.4 Y 557
2025-09-18 21:30:35 C 23 37 54.77 +17 58 59.1 Y 557
2025-09-18 21:31:31 B 23 37 55.370 +17 58 52.93 V D69
2025-09-18 21:34:18 B 23 37 55.550 +17 58 36.59 V D69
2025-09-18 21:37:05 B 23 37 55.711 +17 58 20.50 V D69
2025-09-18 21:58:26 C 23 37 57.502 +17 56 13.13 Z C23
2025-09-18 21:59:38 C 23 37 56.52 +17 56 10.4 Y 557
2025-09-18 22:00:45 C 23 37 57.658 +17 55 59.74 Z C23
2025-09-18 22:31:08 B 23 37 58.954 +17 53 07.98 X K87
2025-09-18 22:31:22 C 23 37 58.39 +17 53 06.8 Y 557
2025-09-18 22:32:19 B 23 37 59.014 +17 53 01.10 X K87
2025-09-18 22:33:33 B 23 37 59.102 +17 52 54.37 X K87
2025-09-18 22:38:11 C 23 37 59.861 +17 52 23.59 Z C23
2025-09-18 22:41:40 C 23 38 00.130 +17 52 03.79 Z C23
2025-09-18 23:02:40 C 23 38 01.14 +17 50 07.2 V D48
2025-09-18 23:08:06 C 23 38 01.46 +17 49 36.0 V D48
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)