200840 (2001 XN254)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5611027636 ± 6.74e-09
Semi-major axis (a)2.3201238807 AU ± 5.37e-09
Inclination (i)1.94289106° ± 1.21e-06
Long. of Asc. Node (Ω)264.05320698° ± 3.85e-05
Arg. of Perihelion (ω)278.72654605° ± 3.92e-05
Mean Anomaly (M)243.84662531° ± 9.77e-06
Mean Motion (n)0.2788980738°/day ± 9.68e-10
Perihelion dist (q)1.01829596 AU ± 1.58e-08
Aphelion dist (Q)3.62195180 AU ± 1.77e-08
Orbital Period3.53400176 yr ± 1.23e-08
Physical Parameters
H (abs. magnitude)17.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.376″
Uncertainty0
Orbit TypeAmor
MOID0.039477 AU
Observations Used715
Oppositions22
Arc Total1994-2025
First Observation Used1994-12-08
Last Observation Used2025-10-17
Observations (737)
Date Type RA Dec Mag Band Observatory
2009-01-22 04:11:21 C 04 21 29.78 +20 33 42.1 19.0 c 704
2009-01-22 04:29:13 C 04 21 29.22 +20 33 39.0 19.0 c 704
2009-01-22 04:47:24 C 04 21 28.66 +20 33 35.8 18.6 c 704
2009-01-26 02:11:45 C 04 19 21.07 +20 19 51.7 r G96
2009-01-26 02:19:45 C 04 19 20.89 +20 19 50.5 r G96
2009-01-26 02:27:42 C 04 19 20.71 +20 19 49.5 r G96
2009-01-26 02:35:30 C 04 19 20.53 +20 19 47.8 r G96
2009-01-28 03:37:02 C 04 18 36.92 +20 13 35.2 18.4 c 704
2009-01-28 03:54:55 C 04 18 36.60 +20 13 31.7 19.4 c 704
2009-01-28 04:12:47 C 04 18 36.37 +20 13 30.5 18.7 c 704
2009-01-28 04:30:26 C 04 18 36.09 +20 13 28.8 18.9 c 704
2009-01-28 04:48:33 C 04 18 35.75 +20 13 26.1 18.8 c 704
2009-02-14 04:02:39 C 04 23 03.62 +19 48 34.3 r 703
2009-02-14 04:11:21 C 04 23 03.94 +19 48 34.3 r 703
2009-02-14 04:19:58 C 04 23 04.12 +19 48 35.1 r 703
2009-02-14 04:28:45 C 04 23 04.41 +19 48 33.9 r 703
2009-02-17 18:15:16 C 04 26 17.27 +19 48 42.6 r 130
2009-02-17 18:19:36 C 04 26 17.47 +19 48 43.8 r 130
2009-02-17 18:23:13 C 04 26 17.58 +19 48 44.0 r 130
2009-02-17 18:26:28 C 04 26 17.61 +19 48 44.1 r 130
2009-02-21 03:14:46 C 04 29 59.82 +19 50 17.9 r 703
2009-02-21 03:23:28 C 04 30 00.14 +19 50 18.5 r 703
2009-02-21 03:32:17 C 04 30 00.54 +19 50 18.8 r 703
2009-02-21 03:41:06 C 04 30 01.08 +19 50 19.3 r 703
2009-02-23 03:38:19 C 04 32 31.51 +19 51 43.4 19.1 c 704
2009-02-23 03:54:33 C 04 32 32.39 +19 51 44.7 19.0 c 704
2009-02-23 04:10:52 C 04 32 33.25 +19 51 45.8 19.1 c 704
2009-02-23 04:27:14 C 04 32 34.14 +19 51 44.7 19.3 c 704
2009-02-23 04:43:35 C 04 32 34.92 +19 51 45.3 19.2 c 704
2009-03-08 05:03:23 C 04 54 21.02 +20 06 31.8 r G96
2009-03-08 05:13:44 C 04 54 21.88 +20 06 32.5 r G96
2009-03-08 05:24:23 C 04 54 22.71 +20 06 32.8 r G96
2009-03-08 05:34:44 C 04 54 23.58 +20 06 33.0 r G96
2009-03-29 03:31:02 C 05 47 53.68 +20 16 08.0 19.4 c 704
2009-03-29 03:48:00 C 05 47 55.83 +20 16 06.6 19.1 c 704
2009-03-29 04:04:59 C 05 47 57.99 +20 16 06.1 19.1 c 704
2009-04-24 04:04:24 C 07 27 31.82 +18 00 05.9 r G96
2009-04-24 04:15:38 C 07 27 33.98 +18 00 00.2 r G96
2009-04-24 04:26:53 C 07 27 36.10 +17 59 55.1 r G96
2009-04-24 04:42:09 C 07 27 38.98 +17 59 47.9 r G96
2009-05-12 03:19:48 C 09 00 07.59 +12 54 48.7 r 703
2009-05-12 03:28:16 C 09 00 09.50 +12 54 40.2 r 703
2009-05-12 03:36:59 C 09 00 11.52 +12 54 30.8 r 703
2009-05-12 03:45:42 C 09 00 13.53 +12 54 23.6 r 703
2013-07-15 11:26:33 C 21 56 25.479 -10 06 21.90 L F51
2013-07-15 11:47:11 C 21 56 24.665 -10 06 25.39 L F51
2013-07-15 12:07:48 C 21 56 23.816 -10 06 29.17 L F51
2013-07-15 12:28:24 C 21 56 22.985 -10 06 32.64 L F51
2013-08-08 10:33:48 C 21 29 35.956 -12 09 02.83 L F51
2013-08-08 10:54:02 C 21 29 34.908 -12 09 07.50 L F51