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
1994-12-08 08:10:17 C 08 29 48.40 +18 22 38.8 a 691
1994-12-08 08:42:50 C 08 29 50.37 +18 22 27.5 a 691
1994-12-08 09:18:25 C 08 29 52.56 +18 22 14.9 a 691
1995-02-04 08:17:00 10 36 19.72 -02 51 51.4 d 261
1995-02-04 09:31:59 10 36 34.71 -02 55 04.2 d 261
2001-11-16 11:34:51 C 07 04 21.27 +23 06 13.0 d 691
2001-11-16 12:07:39 C 07 04 22.15 +23 06 09.9 d 691
2001-11-16 12:40:33 C 07 04 23.01 +23 06 07.0 d 691
2001-12-09 11:14:20 C 07 11 14.53 +22 18 16.1 568
2001-12-09 12:34:12 C 07 11 13.70 +22 18 09.5 568
2001-12-09 13:19:50 C 07 11 13.19 +22 18 05.3 568
2001-12-10 08:42:55 C 07 11 04.76 +22 16 23.5 18.0 c 704
2001-12-10 09:04:29 C 07 11 04.53 +22 16 22.5 18.7 c 704
2001-12-10 09:26:03 C 07 11 04.21 +22 16 19.6 18.9 c 704
2001-12-10 09:47:38 C 07 11 03.97 +22 16 18.2 18.8 c 704
2001-12-13 09:31:12 C 07 10 15.03 +22 10 12.9 18.2 c 644
2001-12-13 11:14:23 C 07 10 13.19 +22 10 03.7 18.2 c 644
2001-12-13 12:45:24 C 07 10 11.60 +22 09 54.9 18.2 c 644
2001-12-14 08:59:30 C 07 09 53.29 +22 08 13.2 18.0 c 704
2001-12-14 09:21:23 C 07 09 52.84 +22 08 11.4 18.4 c 704
2001-12-14 09:43:17 C 07 09 52.39 +22 08 09.2 18.2 c 704
2001-12-14 10:05:11 C 07 09 51.94 +22 08 07.7 18.1 c 704
2001-12-14 10:27:05 C 07 09 51.50 +22 08 05.2 18.3 c 704
2001-12-17 08:58:46 C 07 08 28.80 +22 02 01.5 17.8 c 704
2001-12-17 09:20:40 C 07 08 28.23 +22 01 59.8 18.2 c 704
2001-12-17 09:42:34 C 07 08 27.64 +22 01 58.2 18.5 c 704
2001-12-17 10:04:30 C 07 08 27.06 +22 01 56.1 18.2 c 704
2001-12-17 10:26:25 C 07 08 26.48 +22 01 53.8 18.4 c 704
2001-12-17 15:57:40 C 07 08 18.31 +22 01 26.1 568
2001-12-19 09:15:54 C 07 07 16.75 +21 57 49.8 18.1 c 704
2001-12-19 09:41:00 C 07 07 15.96 +21 57 47.2 18.3 c 704
2001-12-19 10:11:32 C 07 07 15.02 +21 57 44.1 18.4 c 704
2001-12-19 10:33:27 C 07 07 14.37 +21 57 41.9 18.2 c 704
2001-12-19 10:55:21 C 07 07 13.67 +21 57 39.2 18.0 c 704
2001-12-20 10:50:13 C 07 06 33.17 +21 55 37.0 18.1 c 704
2001-12-20 11:12:23 C 07 06 32.54 +21 55 30.7 18.4 c 704
2001-12-20 11:34:27 C 07 06 31.78 +21 55 27.1 18.5 c 704
2001-12-20 12:18:44 C 07 06 30.36 +21 55 22.9 18.4 c 704
2001-12-20 12:57:43 C 07 06 29.72 +21 55 24.2 568
2001-12-20 13:20:58 C 07 06 28.92 +21 55 21.9 568
2001-12-21 07:04:54 C 07 05 57.55 +21 53 43.5 17.5 c 704
2001-12-21 07:05:28 C 07 05 57.49 +21 53 44.0 17.6 c 704
2001-12-21 07:26:32 C 07 05 56.76 +21 53 41.2 18.3 c 704
2001-12-21 07:27:06 C 07 05 56.75 +21 53 42.3 18.5 c 704
2001-12-21 07:48:11 C 07 05 56.00 +21 53 39.6 18.2 c 704
2001-12-21 07:48:44 C 07 05 55.95 +21 53 40.7 17.8 c 704
2001-12-21 08:10:18 C 07 05 55.21 +21 53 37.5 18.0 c 704
2001-12-21 08:10:51 C 07 05 55.23 +21 53 38.4 17.8 c 704
2001-12-21 08:31:58 C 07 05 54.47 +21 53 35.8 18.4 c 704
2001-12-21 08:32:32 C 07 05 54.45 +21 53 36.6 17.6 c 704