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
2009-03-28 05:12:50 C 10 00 15.64 +07 27 16.2 c 711
2009-04-01 03:11:03 C 09 45 52.31 +08 38 04.0 o 291
2009-04-01 03:16:31 C 09 45 51.53 +08 38 07.7 o 291
2009-04-01 03:22:09 C 09 45 50.60 +08 38 12.2 o 291
2009-04-15 00:29:47 C 08 52 38.06 +12 43 34.4 o 950
2009-04-15 00:33:26 C 08 52 37.44 +12 43 36.5 o 950
2009-04-15 00:35:15 C 08 52 37.08 +12 43 38.5 o 950
2009-04-15 00:38:33 C 08 52 36.54 +12 43 40.1 o 950
2009-04-15 00:40:22 C 08 52 36.28 +12 43 41.2 o 950
2009-04-16 02:55:11 C 08 48 17.70 +13 02 06.9 o H55
2009-04-16 03:00:51 C 08 48 16.69 +13 02 10.8 o H55
2009-04-16 03:06:27 C 08 48 15.72 +13 02 14.4 o H55
2009-04-16 05:39:20 C 08 47 49.81 +13 04 05.2 o 291
2009-04-16 05:44:57 C 08 47 48.81 +13 04 07.8 o 291
2009-04-17 04:58:26 C 08 43 57.30 +13 20 23.4 o 291
2009-04-17 05:04:53 C 08 43 56.26 +13 20 27.5 o 291
2009-04-17 05:10:33 C 08 43 55.25 +13 20 31.8 o 291
2009-04-21 06:05:23 C 08 27 23.95 +14 27 11.3 o 291
2009-04-21 06:15:47 C 08 27 22.16 +14 27 17.2 o 291
2009-04-21 06:23:14 C 08 27 20.73 +14 27 22.8 o 291
2009-04-27 03:33:17 C 08 01 28.92 +16 02 18.5 o 291
2009-04-27 03:38:51 C 08 01 27.74 +16 02 21.2 o 291
2009-11-01 08:23:49 C 03 31 18.907 +20 42 41.21 V T12
2009-11-09 09:28:50 C 03 12 39.792 +19 25 34.70 V T12
2016-01-31 11:36:16 C 08 43 20.057 +16 41 39.67 t 568
2016-01-31 11:38:45 C 08 43 19.849 +16 41 40.40 t 568
2016-01-31 11:41:15 C 08 43 19.639 +16 41 41.22 t 568
2016-02-02 09:54:40 C 08 39 28.537 +16 55 15.52 t 568
2016-02-02 10:12:51 C 08 39 26.958 +16 55 20.86 t 568
2016-02-02 10:28:53 C 08 39 25.572 +16 55 25.49 t 568
2018-02-25 11:47:34 C 13 41 27.53 -13 38 28.6 o 291
2018-02-25 11:53:57 C 13 41 28.18 -13 38 33.6 o 291
2018-02-25 12:00:21 C 13 41 28.76 -13 38 37.9 o 291
2018-03-07 09:24:55 C 14 10 03.49 -16 57 47.9 o 291
2018-03-07 09:34:37 C 14 10 04.87 -16 57 57.4 o 291
2018-03-07 09:44:19 C 14 10 06.18 -16 58 06.7 o 291
2018-03-20 12:27:06 C 15 15 29.44 -23 21 24.6 o 291
2018-03-20 12:28:08 C 15 15 29.75 -23 21 26.0 o 291
2018-03-20 12:29:10 C 15 15 30.05 -23 21 27.9 o 291
2025-09-10 22:27:30 B 13 56 37.382 +67 14 00.53 W Z80
2025-09-10 22:35:55 B 13 57 21.478 +67 20 20.18 W Z80
2025-09-10 22:44:15 B 13 58 05.808 +67 26 37.68 W Z80
2025-09-11 18:07:10 B 17 54 07.31 +77 58 54.5 X G02
2025-09-11 18:11:13 B 17 54 47.47 +77 58 20.3 X L76
2025-09-11 18:12:52 B 17 55 19.18 +77 58 18.8 X L76
2025-09-11 18:14:32 B 17 55 51.18 +77 58 16.4 X L76
2025-09-11 18:15:05 B 17 56 39.47 +77 58 49.3 X G02
2025-09-11 18:16:12 B 17 56 23.40 +77 58 14.5 X L76
2025-09-11 18:17:52 B 17 56 55.24 +77 58 11.7 X L76
2025-09-11 18:19:31 B 17 57 27.05 +77 58 09.1 X L76
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)