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
1998-03-28 20:11:22 C 12 17 52.27 +10 58 24.8 z 540
1998-03-28 20:32:24 C 12 17 59.84 +10 59 45.6 z 610
1998-03-28 20:45:22 C 12 18 04.30 +11 00 32.9 z 610
1998-03-28 20:56:30 C 12 18 08.15 +11 01 13.5 z 610
1998-03-28 21:08:53 C 12 18 12.42 +11 01 58.7 z 610
1998-03-28 21:48:03 C 12 18 25.91 +11 04 21.4 z 610
1998-03-28 22:10:39 C 12 18 33.49 +11 05 42.6 c 106
1998-03-28 22:15:53 C 12 18 35.28 +11 06 01.4 c 106
1998-03-28 23:00:11 C 12 18 51.22 +11 08 33.1 z 970
1998-03-28 23:08:12 C 12 18 53.95 +11 09 01.4 z 970
1998-03-28 23:16:56 C 12 18 56.96 +11 09 33.5 z 970
1998-03-29 13:54:06 C 12 24 15.68 +12 04 19.3 422
1998-03-29 13:55:30 C 12 24 16.15 +12 04 24.3 422
1998-03-29 13:56:54 C 12 24 16.65 +12 04 29.2 422
1998-03-29 18:39:01 C 12 26 04.62 +12 19 31.6 z 057
1998-03-29 18:41:23 C 12 26 05.50 +12 19 37.6 z 057
1998-03-29 18:44:43 C 12 26 06.53 +12 19 51.2 z 057
1998-03-29 18:47:36 C 12 26 07.49 +12 20 01.0 z 057
1998-03-29 18:50:02 C 12 26 08.39 +12 20 09.9 z 057
1998-03-29 18:52:13 C 12 26 09.15 +12 20 17.9 z 057
1998-03-29 18:54:44 C 12 26 10.21 +12 20 27.8 z 057
1998-03-29 18:57:17 C 12 26 11.02 +12 20 37.4 z 057
1998-03-29 19:24:05 C 12 26 21.08 +12 22 13.4 z 104
1998-03-29 19:29:49 C 12 26 23.15 +12 22 33.8 z 104
1998-03-29 19:35:30 C 12 26 25.19 +12 22 54.7 z 104
1998-03-29 20:35:00 C 12 26 46.41 +12 26 27.1 z 469
1998-03-29 20:38:30 C 12 26 47.71 +12 26 40.2 z 469
1998-03-29 20:42:30 C 12 26 49.09 +12 26 54.4 z 469
1998-03-29 20:48:29 C 12 26 51.24 +12 27 16.3 z 469
1998-03-29 20:51:13 C 12 26 52.06 +12 27 29.8 z 610
1998-03-29 20:54:29 C 12 26 53.39 +12 27 38.5 z 469
1998-03-29 21:00:30 C 12 26 55.52 +12 28 00.1 z 469
1998-03-29 21:07:05 C 12 26 57.83 +12 28 23.6 z 469
1998-03-29 21:07:32 C 12 26 57.82 +12 28 29.3 z 610
1998-03-29 21:12:29 C 12 26 59.75 +12 28 43.6 z 469
1998-03-29 21:13:03 C 12 26 59.77 +12 28 49.4 z 610
1998-03-29 21:18:14 C 12 27 01.81 +12 29 04.8 z 469
1998-03-29 21:24:14 C 12 27 03.93 +12 29 26.2 z 469
1998-03-29 21:29:45 C 12 27 05.66 +12 29 50.2 z 610
1998-03-29 21:30:15 C 12 27 06.07 +12 29 48.1 z 469
1998-03-29 21:36:14 C 12 27 08.19 +12 30 09.9 z 469
1998-03-29 21:42:14 C 12 27 10.29 +12 30 31.5 z 469
1998-03-29 21:42:25 C 12 27 10.13 +12 30 36.3 z 610
1998-03-29 21:48:15 C 12 27 12.43 +12 30 53.3 z 469
1998-03-29 22:57:06 C 12 27 36.46 +12 35 06.6 z 610
1998-03-29 23:01:18 C 12 27 37.94 +12 35 21.6 z 610
1998-03-29 23:05:59 C 12 27 39.59 +12 35 38.5 z 610
1998-03-29 23:19:24 C 12 27 44.30 +12 36 26.6 z 610
1998-03-29 23:22:42 C 12 27 45.46 +12 36 38.4 z 610
1998-03-30 00:29:05 C 12 28 08.78 +12 40 31.0 046