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
2025-09-20 20:08:43 B 23 41 15.454 +14 19 10.52 V 160
2025-09-20 21:01:54 B 23 41 16.24 +14 15 43.8 X G02
2025-09-20 21:08:42 B 23 41 16.46 +14 15 18.5 X G02
2025-09-20 21:15:15 B 23 41 16.69 +14 14 54.1 X G02
2025-09-20 21:31:32 C 23 41 17.55 +14 13 51.5 Y 557
2025-09-20 21:43:52 B 23 41 15.50 +14 13 11.7 X L76
2025-09-20 21:46:07 B 23 41 15.58 +14 13 03.1 X L76
2025-09-20 21:48:23 B 23 41 15.67 +14 12 54.6 X L76
2025-09-20 21:50:38 B 23 41 15.70 +14 12 46.1 X L76
2025-09-20 21:52:53 B 23 41 15.77 +14 12 37.7 X L76
2025-09-20 21:55:08 B 23 41 15.86 +14 12 29.1 X L76
2025-09-20 21:57:23 B 23 41 15.93 +14 12 20.7 X L76
2025-09-20 21:59:38 B 23 41 16.00 +14 12 12.0 X L76
2025-09-20 22:00:33 C 23 41 18.47 +14 12 03.7 Y 557
2025-09-20 22:01:53 B 23 41 16.07 +14 12 03.5 X L76
2025-09-20 22:04:09 B 23 41 16.11 +14 11 55.1 X L76
2025-09-20 22:18:54 C 23 41 18.55 +14 10 59.2 V K88
2025-09-20 22:23:10 C 23 41 18.68 +14 10 43.4 V K88
2025-09-20 22:27:26 C 23 41 18.81 +14 10 27.5 V K88
2025-09-20 22:30:56 C 23 41 19.40 +14 10 10.7 Y 557
2025-09-20 23:01:19 C 23 41 20.35 +14 08 17.9 Y 557
2025-09-20 23:30:19 C 23 41 21.24 +14 06 30.4 Y 557
2025-09-21 00:00:43 C 23 41 22.19 +14 04 37.8 Y 557
2025-09-21 00:30:29 C 23 41 23.15 +14 02 47.3 Y 557
2025-09-21 01:00:52 C 23 41 24.18 +14 00 55.2 Y 557
2025-09-21 01:34:01 C 23 41 25.34 +13 58 53.0 Y 557
2025-09-21 02:00:16 C 23 41 26.32 +13 57 16.5 Y 557
2025-09-21 02:30:40 C 23 41 27.51 +13 55 24.9 Y 557
2025-09-21 03:01:03 C 23 41 28.79 +13 53 33.5 Y 557
2025-09-21 04:01:42 B 23 41 37.104 +13 50 09.85 W X04
2025-09-21 04:07:52 B 23 41 37.291 +13 49 47.35 W X04
2025-09-21 04:16:07 B 23 41 37.538 +13 49 18.55 W X04
2025-09-21 06:14:39 C 23 41 45.154 +13 42 50.47 V 703
2025-09-21 06:17:54 C 23 41 45.244 +13 42 39.20 V 703
2025-09-21 06:21:09 C 23 41 45.294 +13 42 27.83 V 703
2025-09-21 06:24:25 C 23 41 45.359 +13 42 16.38 V 703
2025-09-21 06:53:02 C 23 41 45.971 +13 40 37.24 V G96
2025-09-21 07:01:15 C 23 41 46.144 +13 40 08.69 V G96
2025-09-21 07:09:27 C 23 41 46.316 +13 39 40.21 V G96
2025-09-21 07:17:39 C 23 41 46.486 +13 39 11.74 V G96
2025-09-21 18:40:46 C 23 42 24.26 +13 00 48.7 Y 557
2025-09-21 18:57:02 B 23 42 23.40 +13 00 07.8 X L76
2025-09-21 19:00:30 B 23 42 23.47 +12 59 57.0 X L76
2025-09-21 19:03:58 B 23 42 23.59 +12 59 46.1 X L76
2025-09-21 19:07:26 B 23 42 23.66 +12 59 35.2 X L76
2025-09-21 19:10:52 C 23 42 25.27 +12 59 15.4 Y 557
2025-09-21 19:10:55 B 23 42 23.75 +12 59 24.7 X L76
2025-09-21 19:14:23 B 23 42 23.85 +12 59 13.5 X L76
2025-09-21 19:17:51 B 23 42 23.90 +12 59 03.0 X L76
2025-09-21 19:21:20 B 23 42 24.00 +12 58 52.2 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)