2009 BF81

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5504968298 ± 2.00e+00
Semi-major axis (a)2.0557169367 AU ± 3.00e+00
Inclination (i)8.58589567° ± 4.00e+00
Long. of Asc. Node (Ω)120.46102860° ± 5.00e+00
Arg. of Perihelion (ω)328.67097822° ± 6.00e+00
Mean Anomaly (M)261.89280101° ± 6.91e-01
Mean Motion (n)0.3344001900°/day ± 7.32e-01
Perihelion dist (q)0.92405250 AU ± 4.33e+00
Aphelion dist (Q)3.18733450 AU ± 6.21e+00
Orbital Period2.94738960 yr ± 6.45e+00
Physical Parameters
H (abs. magnitude)25.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.778″
Uncertainty3
Orbit TypeApollo
MOID0.005973 AU
Observations Used46
Oppositions1
Arc Total2009-2009
First Observation Used
Last Observation Used2009-02-20
Observations (48)
Date Type RA Dec Mag Band Observatory
2009-01-31 05:50:13 C 09 12 22.50 +55 38 44.6 r 703
2009-01-31 05:57:25 C 09 12 29.77 +55 38 08.8 r 703
2009-01-31 06:04:39 C 09 12 37.00 +55 37 34.7 r 703
2009-01-31 06:11:57 C 09 12 44.56 +55 37 00.3 r 703
2009-01-31 07:04:49 C 09 13 37.34 +55 32 42.7 r 703
2009-01-31 07:13:47 C 09 13 46.12 +55 31 57.5 r 703
2009-01-31 07:31:41 C 09 14 03.84 +55 30 28.7 r 703
2009-01-31 20:45:48 C 09 27 02.98 +54 23 19.6 o J95
2009-01-31 21:03:27 C 09 27 17.91 +54 22 00.8 o J95
2009-01-31 21:44:06 C 09 27 52.05 +54 18 58.1 o J95
2009-01-31 22:07:06 C 09 28 13.62 +54 17 50.4 o 493
2009-01-31 22:12:25 C 09 28 17.90 +54 17 26.9 o 493
2009-01-31 22:13:35 C 09 28 18.88 +54 17 21.8 o 493
2009-02-01 05:33:57 C 09 34 20.89 +53 43 05.8 r 703
2009-02-01 05:41:09 C 09 34 26.22 +53 42 34.7 r 703
2009-02-01 05:48:20 C 09 34 31.41 +53 42 02.6 r 703
2009-02-01 05:55:32 C 09 34 36.49 +53 41 33.0 r 703
2009-02-01 07:26:48 C 09 35 41.35 +53 34 50.2 c 854
2009-02-01 07:32:00 C 09 35 45.01 +53 34 25.4 c 854
2009-02-01 07:37:14 C 09 35 48.25 +53 34 02.1 c 854
2009-02-01 09:31:03 C 09 37 08.47 +53 25 14.6 o 673
2009-02-01 09:40:50 C 09 37 15.24 +53 24 29.1 o 673
2009-02-01 09:48:35 C 09 37 20.09 +53 23 55.1 o 673
2009-02-01 09:57:05 C 09 37 25.94 +53 23 16.0 o 673
2009-02-02 07:29:05 C 09 51 24.81 +51 51 06.9 o H55
2009-02-02 07:37:53 C 09 51 29.30 +51 50 30.9 o H55
2009-02-02 07:46:56 C 09 51 33.90 +51 49 53.5 o H55
2009-02-02 09:14:17 C 09 52 22.65 +51 44 22.9 r G96
2009-02-02 09:15:10 C 09 52 23.12 +51 44 19.8 r G96
2009-02-02 09:16:04 C 09 52 23.55 +51 44 16.3 r G96
2009-02-02 09:16:56 C 09 52 23.98 +51 44 12.5 r G96
2009-02-02 10:44:21 C 09 53 06.75 +51 38 01.8 v H01
2009-02-02 10:51:54 C 09 53 10.51 +51 37 30.2 v H01
2009-02-02 11:07:09 C 09 53 18.13 +51 36 25.8 v H01
2009-02-02 11:19:02 C 09 53 24.07 +51 35 35.5 v H01
2009-02-13 06:46:03 C 10 46 22.80 +42 08 25.4 o 291
2009-02-13 07:07:27 C 10 46 23.60 +42 08 00.9 o 291
2009-02-13 07:14:35 C 10 46 23.97 +42 07 51.6 o 291
2009-02-15 05:36:53 C 10 49 02.73 +41 13 49.7 22.9 o H55
2009-02-15 06:02:24 C 10 49 03.53 +41 13 22.6 23.1 o H55
2009-02-15 06:24:26 C 10 49 04.22 +41 12 59.3 22.8 o H55
2009-02-20 06:00:41 C 10 53 13.33 +39 17 13.4 v H01
2009-02-20 06:04:41 C 10 53 13.37 +39 17 10.2 v H01
2009-02-20 06:11:25 C 10 53 13.43 +39 17 04.7 v H01
2009-02-20 06:12:52 C 10 53 12.30 +39 17 00.9 o H55
2009-02-20 06:22:58 C 10 53 13.54 +39 16 55.3 v H01
2009-02-20 06:46:45 C 10 53 12.62 +39 16 32.1 o H55
2009-02-20 07:22:27 C 10 53 12.91 +39 16 01.4 o H55