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
2001-12-25 09:03:43 C 07 02 30.09 +21 44 38.8 18.2 c 608
2001-12-25 09:19:08 C 07 02 29.41 +21 44 37.5 18.1 c 608
2001-12-25 09:34:11 C 07 02 28.75 +21 44 36.1 18.2 c 608
2002-01-08 10:49:14 C 06 44 26.34 +21 04 33.6 568
2002-01-08 10:52:01 C 06 44 26.14 +21 04 33.2 568
2002-01-09 06:14:52 C 06 43 09.66 +21 01 31.9 16.7 c 704
2002-01-09 06:36:39 C 06 43 08.11 +21 01 29.1 17.7 c 704
2002-01-09 06:58:25 C 06 43 06.53 +21 01 25.2 16.9 c 704
2002-01-09 07:20:12 C 06 43 04.90 +21 01 20.6 17.1 c 704
2002-01-09 07:44:11 C 06 43 03.19 +21 01 17.5 16.9 c 704
2002-01-09 19:45:29 C 06 42 15.97 +20 59 23.9 c 157
2002-01-09 19:51:29 C 06 42 15.61 +20 59 23.4 c 157
2002-01-09 20:15:19 C 06 42 13.87 +20 59 20.2 c 157
2002-01-09 23:39:10 C 06 41 59.230 +20 58 47.37 a 112
2002-01-09 23:43:37 C 06 41 58.910 +20 58 46.46 a 112
2002-01-09 23:56:21 C 06 41 57.913 +20 58 44.30 a 112
2002-01-10 22:28:33 C 06 40 26.20 +20 55 08.0 c 113
2002-01-10 22:30:16 C 06 40 26.08 +20 55 07.5 c 113
2002-01-10 22:31:59 C 06 40 25.95 +20 55 07.5 c 113
2002-01-10 22:33:41 C 06 40 25.82 +20 55 07.0 c 113
2002-01-10 22:35:23 C 06 40 25.70 +20 55 06.9 c 113
2002-01-10 22:38:36 C 06 40 25.511 +20 55 07.75 a 112
2002-01-10 22:45:40 C 06 40 25.018 +20 55 06.20 a 112
2002-01-10 22:50:21 C 06 40 24.618 +20 55 05.50 a 112
2002-01-10 22:58:07 C 06 40 24.115 +20 55 04.35 a 112
2002-01-11 13:20:27 C 06 39 24.94 +20 52 47.3 355
2002-01-11 13:25:47 C 06 39 24.55 +20 52 46.2 355
2002-01-11 13:30:59 C 06 39 24.17 +20 52 45.9 355
2002-01-11 13:36:07 C 06 39 23.78 +20 52 45.2 355
2002-01-11 15:03:23 C 06 39 17.55 +20 52 59.3 c 322
2002-01-11 15:07:22 C 06 39 17.29 +20 52 58.6 c 322
2002-01-11 15:10:50 C 06 39 17.18 +20 53 00.5 c 322
2002-01-11 15:24:53 C 06 39 16.09 +20 52 49.3 c 322
2002-01-12 18:42:00 C 06 37 22.55 +20 47 42.7 151
2002-01-12 18:44:58 C 06 37 22.38 +20 47 41.4 151
2002-01-12 20:16:09 C 06 37 15.61 +20 47 29.9 c 157
2002-01-12 20:22:39 C 06 37 15.13 +20 47 28.7 c 157
2002-01-12 20:28:50 C 06 37 14.67 +20 47 27.9 c 157
2002-01-13 19:26:06 C 06 35 37.26 +20 43 21.8 c 113
2002-01-13 19:28:18 C 06 35 37.08 +20 43 21.3 c 113
2002-01-13 19:30:32 C 06 35 36.91 +20 43 21.1 c 113
2002-01-13 19:32:45 C 06 35 36.73 +20 43 20.8 c 113
2002-01-13 19:34:58 C 06 35 36.60 +20 43 20.5 c 113
2002-01-13 20:02:30 C 06 35 34.26 +20 43 16.1 c 469
2002-01-13 20:17:59 C 06 35 33.33 +20 43 13.2 c 469
2002-01-13 20:27:29 C 06 35 32.79 +20 43 11.6 c 469
2002-01-14 19:55:05 C 06 33 52.48 +20 38 57.5 16.4 939
2002-01-14 20:03:34 C 06 33 51.81 +20 38 56.3 16.5 939
2002-01-14 20:12:03 C 06 33 51.12 +20 38 54.6 16.4 939
2002-01-15 04:00:57 C 06 33 17.42 +20 37 24.6 c 642