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
2002-01-29 18:52:18 C 06 08 42.27 +19 16 12.3 151
2002-01-29 19:22:30 C 06 08 40.20 +19 16 04.6 151
2002-01-29 19:31:49 C 06 08 39.58 +19 16 02.6 151
2002-01-29 19:35:03 C 06 08 39.36 +19 16 01.4 151
2002-01-30 04:16:19 C 06 08 06.73 +19 13 44.5 c 670
2002-01-30 05:24:01 C 06 08 02.04 +19 13 26.4 c 670
2002-01-31 18:12:19 C 06 05 48.39 +19 03 03.8 c 198
2002-01-31 18:41:19 C 06 05 46.52 +19 02 55.9 c 198
2002-01-31 19:05:50 C 06 05 44.93 +19 02 49.2 c 198
2002-01-31 19:09:27 C 06 05 44.69 +19 02 48.3 c 198
2002-02-01 11:48:52 C 06 04 45.02 +18 58 40.0 m 428
2002-02-01 11:53:17 C 06 04 44.72 +18 58 38.7 m 428
2002-02-01 11:57:41 C 06 04 44.44 +18 58 37.2 m 428
2002-02-02 14:14:58 C 06 03 14.56 +18 51 05.9 c 322
2002-02-02 14:18:40 C 06 03 14.31 +18 51 03.4 c 322
2002-02-02 14:22:31 C 06 03 14.04 +18 51 02.6 c 322
2002-02-02 14:46:01 C 06 03 12.63 +18 50 56.2 c 322
2002-02-02 14:49:35 C 06 03 12.39 +18 50 54.5 c 322
2002-02-02 19:36:02 C 06 02 57.44 +18 48 53.9 c 636
2002-02-02 19:46:47 C 06 02 56.77 +18 48 50.9 c 636
2002-02-02 19:53:37 C 06 02 56.37 +18 48 48.8 c 636
2002-02-02 20:00:40 C 06 02 55.92 +18 48 48.2 c 198
2002-02-02 20:05:52 C 06 02 55.59 +18 48 46.7 c 198
2002-02-02 20:26:45 C 06 02 54.31 +18 48 40.7 c 198
2002-02-02 20:31:57 C 06 02 53.99 +18 48 39.2 c 198
2002-02-02 20:32:46 C 06 02 53.90 +18 48 39.3 c 215
2002-02-02 20:33:59 C 06 02 53.83 +18 48 39.0 c 215
2002-02-02 20:34:42 C 06 02 53.79 +18 48 38.7 c 215
2002-02-02 21:08:58 C 06 02 51.70 +18 48 28.2 c 240
2002-02-02 21:10:01 C 06 02 51.63 +18 48 27.9 c 240
2002-02-02 21:26:16 C 06 02 50.67 +18 48 23.7 c 240
2002-02-03 19:01:22 C 06 01 41.15 +18 42 03.6 151
2002-02-03 19:04:22 C 06 01 40.97 +18 42 02.6 151
2002-02-03 19:08:19 C 06 01 40.74 +18 42 01.6 151
2002-02-03 19:10:44 C 06 01 40.60 +18 42 01.2 151
2002-02-03 19:17:55 C 06 01 40.16 +18 41 58.1 c 240
2002-02-03 19:46:04 C 06 01 38.40 +18 41 51.8 16.2 c 106
2002-02-03 20:13:56 C 06 01 36.72 +18 41 43.5 16.4 c 106
2002-02-03 20:39:59 C 06 01 35.34 +18 41 34.5 c 240
2002-02-03 20:41:33 C 06 01 35.24 +18 41 34.1 c 240
2002-02-03 20:44:14 C 06 01 34.93 +18 41 34.5 16.5 c 106
2002-02-03 20:47:44 C 06 01 34.88 +18 41 32.2 c 240
2002-02-04 17:35:21 C 06 00 30.83 +18 35 20.6 c 185
2002-02-04 17:39:31 C 06 00 30.60 +18 35 19.1 c 185
2002-02-04 17:43:31 C 06 00 30.40 +18 35 18.5 c 185
2002-02-04 17:46:57 C 06 00 30.20 +18 35 17.4 c 185
2002-02-04 17:49:30 C 06 00 30.06 +18 35 16.6 c 185
2002-02-04 17:51:48 C 06 00 29.88 +18 35 15.7 c 185
2002-02-04 19:31:56 C 06 00 24.12 +18 34 45.9 c 113
2002-02-04 19:40:41 C 06 00 23.61 +18 34 42.8 c 113