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
1998-06-22 22:36:07 C 17 00 07.94 +11 37 47.4 046
1998-06-23 03:40:35 C 17 00 12.68 +11 32 23.7 18.1 a 704
1998-06-23 04:07:06 C 17 00 13.00 +11 31 54.1 18.0 a 704
1998-06-23 04:33:45 C 17 00 13.29 +11 31 24.9 17.1 a 704
1998-06-23 05:00:15 C 17 00 13.38 +11 30 56.1 17.3 a 704
1998-06-23 05:26:45 C 17 00 13.56 +11 30 26.3 17.2 a 704
1998-06-28 22:07:47 C 17 02 15.74 +09 04 01.8 557
1998-06-28 22:10:43 C 17 02 15.75 +09 03 57.7 557
1998-07-02 14:21:45 C 17 03 52.20 +07 31 39.9 360
1998-07-02 14:28:00 C 17 03 52.32 +07 31 33.2 360
1998-07-02 14:33:59 C 17 03 52.40 +07 31 27.1 360
1998-07-03 21:40:06 C 17 04 30.24 +06 59 20.4 557
1998-07-19 21:13:09 C 17 14 49.21 +00 53 14.1 046
1998-07-19 21:21:05 C 17 14 49.50 +00 53 06.1 046
1998-07-19 21:23:25 C 17 14 49.58 +00 53 04.8 046
1998-07-19 21:25:45 C 17 14 49.61 +00 53 02.8 046
1998-07-19 22:04:10 C 17 14 50.79 +00 52 28.6 557
1998-07-19 22:07:32 C 17 14 50.87 +00 52 25.8 557
1998-07-19 22:10:52 C 17 14 50.96 +00 52 23.0 557
1998-07-19 22:14:13 C 17 14 51.10 +00 52 20.4 557
2000-11-20 09:48:16 C 06 21 11.10 +07 02 25.4 696
2000-11-20 09:53:15 C 06 21 10.98 +07 02 23.6 696
2000-11-22 10:43:53 C 06 20 07.51 +06 46 31.3 696
2000-11-22 10:48:38 C 06 20 07.40 +06 46 29.5 696
2000-12-23 06:00:31 C 05 46 31.45 +03 39 35.2 696
2000-12-23 06:06:52 C 05 46 31.06 +03 39 34.6 696
2000-12-28 07:41:36 C 05 38 56.13 +03 27 24.7 711
2000-12-28 07:55:13 C 05 38 55.21 +03 27 23.5 711
2014-05-06 14:22:24 C 21 32 07.338 -02 50 58.76 L F51
2014-05-06 14:29:17 C 21 32 07.723 -02 50 55.99 L F51
2014-05-06 14:36:10 C 21 32 08.105 -02 50 52.94 L F51
2014-08-20 08:55:45 C 21 08 11.231 -04 35 38.48 L F51
2014-08-20 09:14:06 C 21 08 10.398 -04 35 47.32 L F51
2014-08-21 08:22:02 C 21 07 10.323 -04 46 42.47 L F51
2014-08-21 08:40:33 C 21 07 09.485 -04 46 51.03 L F51
2014-08-21 08:59:06 C 21 07 08.658 -04 46 59.86 L F51
2014-08-21 09:17:40 C 21 07 07.830 -04 47 08.50 L F51
2017-01-23 10:23:33 C 12 40 35.65 -18 20 34.2 R G45
2017-01-23 10:30:22 C 12 40 36.83 -18 20 39.0 R G45
2017-01-23 10:30:33 C 12 40 36.85 -18 20 39.3 R G45
2017-01-23 10:36:44 C 12 40 37.99 -18 20 43.5 R G45
2017-01-23 10:43:38 C 12 40 39.25 -18 20 48.7 R G45
2017-01-23 10:43:50 C 12 40 39.25 -18 20 49.3 R G45
2017-01-23 10:50:06 C 12 40 40.37 -18 20 53.3 R G45
2017-01-23 10:55:50 C 12 40 41.39 -18 20 57.6 R G45
2017-01-23 10:57:05 C 12 40 41.62 -18 20 58.5 R G45
2017-01-26 10:32:48 C 12 54 05.71 -19 11 25.3 R G45
2017-01-26 10:46:50 C 12 54 08.32 -19 11 35.0 R G45
2017-01-26 10:53:43 C 12 54 09.63 -19 11 39.5 R G45
2017-01-26 11:00:33 C 12 54 10.91 -19 11 44.2 R G45