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
1998-03-20 03:05:09 C 11 14 21.83 -00 30 57.5 17.3 a 704
1998-03-20 03:34:19 C 11 14 28.59 -00 29 36.1 a 704
1998-03-20 04:03:25 C 11 14 35.45 -00 28 15.3 a 704
1998-03-20 04:32:23 C 11 14 42.14 -00 26 54.3 a 704
1998-03-20 05:02:00 C 11 14 48.92 -00 25 31.4 a 704
1998-03-22 03:31:35 C 11 26 54.00 +01 51 08.0 a 704
1998-03-22 04:00:42 C 11 27 01.49 +01 52 37.1 a 704
1998-03-22 04:29:40 C 11 27 08.95 +01 54 07.0 a 704
1998-03-22 04:59:43 C 11 27 16.63 +01 55 39.0 a 704
1998-03-22 05:28:37 C 11 27 24.05 +01 57 08.1 a 704
1998-03-23 18:39:44 C 11 37 59.98 +03 54 56.5 046
1998-03-23 18:41:40 C 11 38 00.52 +03 55 03.5 046
1998-03-23 18:43:30 C 11 38 01.05 +03 55 09.8 046
1998-03-23 18:45:30 C 11 38 01.62 +03 55 16.1 046
1998-03-23 20:42:01 C 11 38 34.55 +04 01 38.5 557
1998-03-23 20:44:02 C 11 38 35.12 +04 01 45.1 557
1998-03-23 20:45:44 C 11 38 35.61 +04 01 50.8 557
1998-03-23 20:47:37 C 11 38 36.14 +04 01 57.0 557
1998-03-23 23:41:47 C 11 39 25.20 +04 11 30.8 046
1998-03-23 23:43:34 C 11 39 25.70 +04 11 36.6 046
1998-03-23 23:44:51 C 11 39 26.08 +04 11 40.9 046
1998-03-24 00:33:07 C 11 39 40.36 +04 14 17.8 j 012
1998-03-24 00:37:04 C 11 39 41.48 +04 14 30.6 j 012
1998-03-24 00:41:18 C 11 39 42.68 +04 14 44.6 j 012
1998-03-24 02:04:44 C 11 40 06.00 +04 19 19.6 557
1998-03-24 02:07:27 C 11 40 06.78 +04 19 28.4 557
1998-03-24 02:11:30 C 11 40 07.95 +04 19 41.8 557
1998-03-24 02:14:10 C 11 40 08.73 +04 19 50.7 557
1998-03-24 03:08:55 C 11 40 29.34 +04 23 01.0 z 830
1998-03-24 04:46:05 C 11 40 56.77 +04 28 23.0 z 830
1998-03-24 05:11:34 C 11 41 07.47 +04 29 58.0 z 676
1998-03-24 05:48:35 C 11 41 12.29 +04 33 18.7 z 860
1998-03-24 05:52:28 C 11 41 18.19 +04 32 13.9 17.9 a 704
1998-03-24 05:54:02 C 11 41 13.88 +04 33 37.2 z 860
1998-03-24 05:56:30 C 11 41 20.20 +04 32 27.4 z 676
1998-03-24 05:59:39 C 11 41 15.48 +04 33 55.6 z 860
1998-03-24 06:00:31 C 11 41 20.48 +04 32 41.3 17.9 a 704
1998-03-24 06:00:52 C 11 41 20.56 +04 32 41.6 18.0 a 704
1998-03-24 06:02:30 C 11 41 21.87 +04 32 47.2 z 676
1998-03-24 06:12:34 C 11 41 23.84 +04 33 20.7 a 704
1998-03-24 06:20:37 C 11 41 26.13 +04 33 48.1 a 704
1998-03-24 06:20:59 C 11 41 26.22 +04 33 48.8 a 704
1998-03-24 06:28:41 C 11 41 29.27 +04 34 14.4 z 676
1998-03-24 06:32:40 C 11 41 29.49 +04 34 27.4 a 704
1998-03-24 06:40:44 C 11 41 31.76 +04 34 54.6 a 704
1998-03-24 06:41:05 C 11 41 31.84 +04 34 55.1 a 704
1998-03-24 06:52:48 C 11 41 34.97 +04 35 33.5 a 704
1998-03-24 07:00:51 C 11 41 37.05 +04 36 03.8 a 704
1998-03-24 07:01:12 C 11 41 37.14 +04 36 06.2 a 704
1998-03-24 07:12:56 C 11 41 40.83 +04 36 42.8 a 704