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
1998-04-05 02:17:14 C 13 25 20.03 +20 49 18.7 z 758
1998-04-05 02:20:15 C 13 25 21.20 +20 49 27.6 z 758
1998-04-05 04:24:44 C 13 26 08.90 +20 55 16.1 15.6 z 750
1998-04-05 04:26:45 C 13 26 09.70 +20 55 22.5 15.9 z 750
1998-04-05 04:28:05 C 13 26 10.22 +20 55 26.4 15.4 z 750
1998-04-05 12:57:48 C 13 29 33.89 +21 21 52.3 422
1998-04-05 12:59:11 C 13 29 34.42 +21 21 56.2 422
1998-04-05 13:00:33 C 13 29 34.94 +21 22 00.6 422
1998-04-05 14:02:11 C 13 29 59.48 +21 24 56.3 426
1998-04-05 14:07:09 C 13 30 01.36 +21 25 10.9 426
1998-04-05 14:11:32 C 13 30 03.02 +21 25 23.8 426
1998-04-06 23:19:14 C 13 43 12.55 +22 53 56.9 046
1998-04-06 23:20:24 C 13 43 12.99 +22 54 00.0 046
1998-04-06 23:21:40 C 13 43 13.47 +22 54 03.4 046
1998-04-07 02:04:13 C 13 44 14.87 +23 00 58.0 557
1998-04-07 02:05:24 C 13 44 15.33 +23 01 01.0 557
1998-04-07 02:06:36 C 13 44 15.77 +23 01 03.9 557
1998-04-07 02:07:47 C 13 44 16.23 +23 01 07.0 557
1998-04-07 06:01:49 C 13 45 47.77 +23 12 48.0 860
1998-04-07 06:06:40 C 13 45 49.61 +23 13 00.4 860
1998-04-07 06:14:55 C 13 45 52.68 +23 13 20.3 860
1998-04-09 00:27:04 C 14 02 19.71 +24 51 27.4 046
1998-04-09 00:29:08 C 14 02 20.47 +24 51 32.0 046
1998-04-09 00:30:47 C 14 02 21.06 +24 51 35.5 046
1998-04-09 21:11:32 C 14 10 14.55 +25 34 52.0 z 540
1998-04-09 21:13:34 C 14 10 15.29 +25 34 56.3 z 540
1998-04-09 21:15:16 C 14 10 15.92 +25 34 59.9 z 540
1998-04-10 00:10:48 C 14 11 18.73 +25 40 56.4 046
1998-04-10 00:12:04 C 14 11 19.19 +25 40 58.9 046
1998-04-10 00:13:14 C 14 11 19.59 +25 41 01.2 046
1998-04-14 21:15:32 C 14 51 58.38 +28 38 53.4 z 108
1998-04-14 21:18:50 C 14 51 59.50 +28 38 55.3 z 108
1998-04-14 21:21:49 C 14 52 00.40 +28 38 59.5 z 108
1998-04-14 21:25:19 C 14 52 01.48 +28 39 04.6 z 108
1998-04-15 03:24:00 C 14 53 52.76 +28 46 56.0 860
1998-04-15 03:34:39 C 14 53 55.92 +28 47 07.2 860
1998-04-15 03:42:39 C 14 53 58.22 +28 47 15.7 860
1998-04-15 10:21:53 C 14 56 00.51 +28 52 39.3 658
1998-04-15 10:23:21 C 14 56 00.86 +28 52 40.7 658
1998-04-15 10:24:50 C 14 56 01.37 +28 52 42.2 658
1998-04-15 15:43:15 C 14 57 40.87 +28 58 13.5 z 402
1998-04-15 15:45:14 C 14 57 41.44 +28 58 15.5 z 402
1998-04-15 15:47:14 C 14 57 42.03 +28 58 17.5 z 402
1998-04-16 10:56:02 C 15 03 25.59 +29 15 24.1 658
1998-04-16 10:58:22 C 15 03 26.24 +29 15 26.0 658
1998-04-16 11:02:50 C 15 03 27.48 +29 15 29.8 658
1998-04-17 04:27:58 C 15 08 35.07 +29 29 22.2 z 750
1998-04-17 04:36:59 C 15 08 37.45 +29 29 29.5 z 750
1998-04-17 10:54:12 C 15 10 20.38 +29 34 07.1 658
1998-04-17 10:57:36 C 15 10 21.31 +29 34 09.5 658