20255 (1998 FX2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4920247349 ± 1.11e-08
Semi-major axis (a)2.1512588996 AU ± 2.44e-09
Inclination (i)9.95868414° ± 3.25e-06
Long. of Asc. Node (Ω)180.92289749° ± 4.93e-06
Arg. of Perihelion (ω)17.53078154° ± 1.26e-05
Mean Anomaly (M)269.81766199° ± 6.88e-06
Mean Motion (n)0.3123728329°/day ± 5.31e-10
Perihelion dist (q)1.09278631 AU ± 2.40e-08
Aphelion dist (Q)3.20973149 AU ± 2.42e-08
Orbital Period3.15528810 yr ± 5.36e-09
Physical Parameters
H (abs. magnitude)18.45
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.467″
Uncertainty0
Orbit TypeAmor
MOID0.101599 AU
Observations Used664
Oppositions16
Arc Total1998-2022
First Observation Used1998-03-20
Last Observation Used2022-12-23
Observations (689)
Date Type RA Dec Mag Band Observatory
1998-03-25 12:34:24 C 11 50 50.13 +06 16 07.5 z 402
1998-03-25 12:35:54 C 11 50 50.59 +06 16 12.8 z 402
1998-03-25 15:32:15 C 11 51 43.63 +06 26 24.2 360
1998-03-25 15:34:44 C 11 51 44.39 +06 26 32.9 360
1998-03-25 15:37:15 C 11 51 45.14 +06 26 41.3 360
1998-03-25 19:36:10 C 11 53 05.44 +06 40 11.2 z 057
1998-03-25 19:43:07 C 11 53 07.85 +06 40 38.1 z 057
1998-03-25 19:45:26 C 11 53 08.39 +06 40 48.4 z 057
1998-03-25 19:49:03 C 11 53 09.53 +06 40 59.5 z 057
1998-03-25 20:01:03 C 11 53 13.13 +06 41 42.0 z 057
1998-03-25 20:09:35 C 11 53 15.77 +06 42 11.7 z 057
1998-03-25 21:26:04 C 11 53 39.87 +06 46 36.6 z 610
1998-03-25 21:35:29 C 11 53 43.58 +06 47 15.4 z 620
1998-03-25 21:39:42 C 11 53 44.04 +06 47 24.0 z 610
1998-03-25 21:43:47 C 11 53 45.25 +06 47 37.6 c 106
1998-03-25 21:47:50 C 11 53 47.34 +06 47 58.4 z 620
1998-03-25 21:52:25 C 11 53 47.93 +06 48 08.2 z 610
1998-03-25 22:04:29 C 11 53 51.62 +06 48 50.2 z 610
1998-03-25 22:12:14 C 11 53 54.01 +06 49 16.2 c 106
1998-03-25 22:16:54 C 11 53 55.42 +06 49 33.3 z 610
1998-03-25 22:18:50 C 11 53 56.79 +06 49 46.4 z 620
1998-03-25 22:19:43 C 11 53 56.17 +06 49 36.5 113
1998-03-25 22:22:42 C 11 53 57.10 +06 49 46.8 113
1998-03-25 22:25:42 C 11 53 58.03 +06 49 57.4 113
1998-03-25 22:28:42 C 11 53 58.94 +06 50 07.8 113
1998-03-25 22:30:00 C 11 53 59.42 +06 50 18.8 z 610
1998-03-25 22:31:41 C 11 53 59.87 +06 50 18.2 113
1998-03-25 22:34:07 C 11 54 00.75 +06 50 32.0 c 106
1998-03-25 22:34:41 C 11 54 00.80 +06 50 28.9 113
1998-03-25 22:37:42 C 11 54 01.73 +06 50 39.3 113
1998-03-25 22:38:35 C 11 54 02.82 +06 50 55.3 z 620
1998-03-25 22:39:57 C 11 54 02.55 +06 50 52.3 c 106
1998-03-25 22:40:41 C 11 54 02.64 +06 50 49.5 113
1998-03-25 22:43:41 C 11 54 03.56 +06 51 00.1 113
1998-03-25 22:46:42 C 11 54 04.48 +06 51 10.5 113
1998-03-25 22:47:21 C 11 54 04.73 +06 51 19.2 z 610
1998-03-25 22:48:10 C 11 54 05.74 +06 51 28.7 z 620
1998-03-25 23:46:59 C 11 54 22.92 +06 54 41.0 557
1998-03-26 00:47:33 C 11 54 41.70 +06 58 11.4 557
1998-03-26 02:22:58 C 11 55 11.63 +07 03 42.3 557
1998-03-26 04:18:10 C 11 55 53.53 +07 10 53.5 a 831
1998-03-26 04:20:22 C 11 55 54.20 +07 11 01.1 a 831
1998-03-26 04:34:46 C 11 55 58.60 +07 11 51.5 a 831
1998-03-26 04:38:17 C 11 55 59.55 +07 12 05.8 z 758
1998-03-26 04:42:18 C 11 56 00.77 +07 12 19.9 z 758
1998-03-26 04:46:18 C 11 56 02.00 +07 12 33.8 z 758
1998-03-26 11:00:12 C 11 58 07.77 +07 35 47.9 422
1998-03-26 11:01:53 C 11 58 08.30 +07 35 53.8 422
1998-03-26 11:03:35 C 11 58 08.85 +07 36 00.0 422
1998-03-26 19:45:25 C 12 01 02.57 +08 04 55.3 z 108