4341 Poseidon (1987 KF)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6801107602 ± 1.58e-08
Semi-major axis (a)1.8342474389 AU ± 1.45e-09
Inclination (i)11.84040545° ± 2.06e-06
Long. of Asc. Node (Ω)108.02422834° ± 1.23e-05
Arg. of Perihelion (ω)15.83332878° ± 1.29e-05
Mean Anomaly (M)202.70165030° ± 3.72e-06
Mean Motion (n)0.3967577275°/day ± 4.69e-10
Perihelion dist (q)0.58675602 AU ± 2.90e-08
Aphelion dist (Q)3.08173886 AU ± 2.91e-08
Orbital Period2.48420186 yr ± 2.94e-09
Physical Parameters
H (abs. magnitude)16.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.309″
Uncertainty0
Orbit TypeApollo
MOID0.194489 AU
Observations Used802
Gaia Obs Used38
Oppositions18
Arc Total1987-2025
First Observation Used1987-05-29
Last Observation Used2025-07-31
Observations (842)
Date Type RA Dec Mag Band Observatory
2006-11-25 09:58:35 C 22 05 39.66 -28 54 58.8 r E12
2006-11-25 10:11:34 C 22 05 39.80 -28 54 53.4 r E12
2006-11-25 10:24:20 C 22 05 40.02 -28 54 47.5 r E12
2006-11-25 10:37:00 C 22 05 40.23 -28 54 42.4 r E12
2006-12-19 10:46:19 C 22 24 42.87 -23 47 20.9 r E12
2006-12-19 10:52:07 C 22 24 43.16 -23 47 17.7 r E12
2006-12-19 10:57:51 C 22 24 43.41 -23 47 13.5 r E12
2006-12-19 11:03:38 C 22 24 43.63 -23 47 10.2 r E12
2006-12-19 11:13:56 C 22 24 44.06 -23 47 04.0 r E12
2006-12-19 11:19:43 C 22 24 44.31 -23 47 00.2 r E12
2006-12-19 11:25:28 C 22 24 44.56 -23 46 55.7 r E12
2006-12-19 11:31:12 C 22 24 44.78 -23 46 52.0 r E12
2007-05-12 23:26:13 C 18 09 18.581 -05 12 24.1 r 084
2007-05-16 22:26:01 C 17 59 27.349 -05 37 09.3 r 084
2007-05-19 00:13:31 C 17 54 08.64 -05 51 15.0 17.5 r 130
2007-05-19 00:15:41 C 17 54 08.39 -05 51 15.6 17.7 r 130
2007-05-19 00:17:52 C 17 54 08.17 -05 51 16.3 17.6 r 130
2007-05-19 00:20:45 C 17 54 07.84 -05 51 17.0 17.5 r 130
2007-05-19 22:40:27 C 17 51 43.603 -05 57 52.1 r 084
2007-05-21 09:34:37 C 17 47 56.67 -06 08 22.8 r H45
2007-05-21 09:35:47 C 17 47 56.55 -06 08 23.0 r H45
2007-05-21 09:38:31 C 17 47 56.25 -06 08 24.0 r H45
2007-05-21 09:40:20 C 17 47 56.05 -06 08 24.4 r H45
2007-05-21 09:42:02 C 17 47 55.86 -06 08 25.0 r H45
2007-06-09 07:55:24 C 17 01 15.56 -08 45 32.7 r 703
2007-06-09 08:05:33 C 17 01 14.77 -08 45 37.6 r 703
2007-06-09 08:15:38 C 17 01 13.69 -08 45 40.5 r 703
2007-06-09 08:25:47 C 17 01 12.75 -08 45 43.8 r 703
2007-06-19 05:19:45 C 16 42 18.42 -10 12 01.3 18.0 c 704
2007-06-19 05:33:34 C 16 42 17.41 -10 12 06.9 18.2 c 704
2007-06-19 05:47:30 C 16 42 16.51 -10 12 11.6 18.9 c 704
2007-06-19 06:01:53 C 16 42 15.44 -10 12 16.9 18.1 c 704
2007-06-19 06:15:41 C 16 42 14.39 -10 12 21.5 18.3 c 704
2007-06-24 10:58:22 C 16 34 25.46 -10 56 42.9 r E12
2007-06-24 11:15:45 C 16 34 24.49 -10 56 48.8 r E12
2007-06-24 11:30:08 C 16 34 23.62 -10 56 53.5 r E12
2007-06-24 11:44:29 C 16 34 22.76 -10 56 58.4 r E12
2007-06-26 02:37:50 C 16 32 14.95 -11 10 38.2 r 808
2007-06-26 02:52:29 C 16 32 14.16 -11 10 43.8 r 808
2007-06-26 03:00:30 C 16 32 13.75 -11 10 46.4 r 808
2007-07-10 11:34:44 C 16 19 21.54 -13 06 35.6 r E12
2007-07-10 11:47:00 C 16 19 21.21 -13 06 39.9 r E12
2007-07-10 12:11:34 C 16 19 20.60 -13 06 47.9 r E12
2007-07-15 04:15:58 C 16 17 16.19 -13 42 31.5 18.3 c 704
2007-07-15 04:31:48 C 16 17 15.92 -13 42 36.4 18.6 c 704
2007-07-15 04:47:53 C 16 17 15.69 -13 42 42.4 19.3 c 704
2007-07-15 05:03:40 C 16 17 15.40 -13 42 47.1 18.6 c 704
2007-07-15 05:19:27 C 16 17 15.17 -13 42 51.3 18.6 c 704
2010-06-19 09:22:29 C 20 13 17.79 -20 28 52.0 r G96
2010-06-19 09:30:12 C 20 13 17.47 -20 28 53.7 r G96