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
2002-02-14 19:43:02 C 05 51 20.42 +17 18 57.2 c 127
2002-02-14 19:51:57 C 05 51 20.16 +17 18 54.0 c 127
2002-02-15 02:25:51 C 05 51 11.68 +17 16 51.8 16.7 c 704
2002-02-15 02:46:21 C 05 51 11.06 +17 16 45.3 16.8 c 704
2002-02-15 03:06:55 C 05 51 10.42 +17 16 38.5 16.9 c 704
2002-02-15 03:27:27 C 05 51 09.80 +17 16 31.5 16.6 c 704
2002-02-15 03:48:10 C 05 51 09.16 +17 16 24.5 16.9 c 704
2002-02-16 02:21:32 C 05 50 42.09 +17 08 52.7 16.6 c 704
2002-02-16 02:42:38 C 05 50 41.54 +17 08 45.7 17.0 c 704
2002-02-16 03:03:59 C 05 50 40.92 +17 08 38.3 16.7 c 704
2002-02-16 03:25:22 C 05 50 40.37 +17 08 31.6 17.0 c 704
2002-02-16 03:28:55 C 05 50 40.73 +17 08 21.9 c 642
2002-02-16 03:33:29 C 05 50 40.65 +17 08 20.6 c 642
2002-02-16 03:47:20 C 05 50 40.26 +17 08 16.0 c 642
2002-02-16 03:49:32 C 05 50 39.69 +17 08 22.8 17.1 c 704
2002-02-16 18:56:00 C 05 50 24.15 +17 03 10.9 c 185
2002-02-16 19:01:03 C 05 50 24.01 +17 03 08.9 c 185
2002-02-16 19:05:00 C 05 50 23.91 +17 03 07.6 c 185
2002-02-16 19:09:32 C 05 50 23.76 +17 03 05.9 c 185
2002-02-16 19:13:20 C 05 50 23.69 +17 03 04.7 c 185
2002-02-16 19:33:22 C 05 50 23.21 +17 02 58.0 c 185
2002-02-16 19:37:41 C 05 50 23.10 +17 02 56.7 c 185
2002-02-17 20:35:51 C 05 50 00.05 +16 54 26.8 151
2002-02-17 20:42:04 C 05 49 59.93 +16 54 24.6 151
2002-02-17 20:49:32 C 05 49 59.78 +16 54 21.9 151
2002-02-17 20:54:02 C 05 49 59.69 +16 54 20.4 151
2002-02-17 21:00:19 C 05 49 59.57 +16 54 18.2 151
2002-02-17 21:04:03 C 05 49 59.49 +16 54 16.6 151
2002-02-17 22:01:36 C 05 49 58.40 +16 53 56.2 c 240
2002-02-17 22:09:21 C 05 49 58.26 +16 53 53.3 c 240
2002-02-17 23:03:15 C 05 49 57.30 +16 53 33.3 c 240
2002-02-17 23:07:55 C 05 49 57.22 +16 53 31.4 c 240
2002-02-21 18:45:14 C 05 49 21.38 +16 21 29.6 c 198
2002-02-21 18:57:35 C 05 49 21.29 +16 21 25.1 c 198
2002-02-21 19:04:47 C 05 49 21.23 +16 21 22.6 c 198
2002-02-21 19:19:10 C 05 49 21.13 +16 21 17.5 c 198
2002-02-21 19:26:23 C 05 49 21.08 +16 21 14.9 c 198
2002-03-03 20:27:28 C 05 53 18.09 +14 46 26.9 c 198
2002-03-03 20:31:22 C 05 53 18.19 +14 46 25.1 c 198
2002-03-03 20:32:58 C 05 53 18.23 +14 46 24.4 c 198
2002-03-04 10:51:46 C 05 53 47.68 +14 40 55.7 m 428
2002-03-04 10:56:15 C 05 53 47.76 +14 40 53.5 m 428
2002-03-04 11:00:43 C 05 53 47.89 +14 40 51.5 m 428
2002-03-07 02:45:23 C 05 56 24.10 +14 10 46.0 16.3 c 704
2002-03-07 03:07:43 C 05 56 24.89 +14 10 35.2 16.2 c 704
2002-03-07 03:29:58 C 05 56 25.65 +14 10 24.2 16.5 c 704
2002-03-07 03:52:18 C 05 56 26.49 +14 10 13.6 16.3 c 704
2002-03-07 04:14:43 C 05 56 27.28 +14 10 02.3 16.5 c 704
2002-03-08 10:37:56 C 05 57 55.90 +13 55 09.5 c 355
2002-03-08 10:48:00 C 05 57 56.29 +13 55 04.9 c 355