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
2016-01-08 08:27:24 C 03 20 05.788 +18 45 44.13 L F51
2016-01-08 08:31:25 C 03 20 05.695 +18 45 43.55 L F51
2016-01-08 08:46:59 C 03 20 05.299 +18 45 41.17 L F51
2016-01-08 08:51:01 C 03 20 05.201 +18 45 40.63 L F51
2016-01-08 09:06:40 C 03 20 04.812 +18 45 38.29 L F51
2016-01-08 09:10:43 C 03 20 04.710 +18 45 37.64 L F51
2016-01-14 01:53:22 C 03 17 43.20 +18 28 46.1 q G96
2016-01-14 02:03:35 C 03 17 43.08 +18 28 44.9 q G96
2016-01-14 02:13:50 C 03 17 42.91 +18 28 44.0 q G96
2016-01-14 02:27:25 C 03 17 42.73 +18 28 42.4 q G96
2016-03-19 02:41:20 C 04 29 30.04 +20 49 39.2 q G96
2016-03-19 02:50:09 C 04 29 30.87 +20 49 40.7 q G96
2016-03-19 02:59:00 C 04 29 31.71 +20 49 42.0 q G96
2016-03-19 03:07:49 C 04 29 32.56 +20 49 43.2 q G96
2016-03-28 05:48:33 C 04 51 54.389 +21 23 24.24 L F51
2016-03-28 05:55:57 C 04 51 55.181 +21 23 25.21 L F51
2016-03-28 06:03:22 C 04 51 55.978 +21 23 26.22 L F51
2016-03-28 06:10:49 C 04 51 56.774 +21 23 27.13 L F51
2020-06-20 13:54:49 C 21 42 30.581 -11 51 50.79 U F51
2020-06-20 14:17:32 C 21 42 30.089 -11 51 51.78 U F51
2020-06-20 14:28:54 C 21 42 29.823 -11 51 52.29 U F51
2020-06-26 13:46:45 C 21 38 52.850 -12 02 24.76 U F51
2020-06-26 13:58:09 C 21 38 52.493 -12 02 25.91 U F51
2020-06-26 14:09:33 C 21 38 52.160 -12 02 27.06 U F51
2020-06-29 12:19:54 C 21 36 39.977 -12 09 49.74 U F51
2020-06-29 12:39:33 C 21 36 39.295 -12 09 52.08 U F51
2020-06-29 12:59:12 C 21 36 38.601 -12 09 54.23 U F51
2020-07-12 10:08:36 C 21 23 57.29 -12 57 17.7 V G96
2020-07-12 10:15:26 C 21 23 56.97 -12 57 18.6 V G96
2020-07-12 10:22:16 C 21 23 56.63 -12 57 21.1 V G96
2020-07-12 10:29:04 C 21 23 56.26 -12 57 21.6 V G96
2020-07-12 13:42:02 C 21 23 47.032 -12 57 56.30 U F51
2020-07-12 14:00:30 C 21 23 46.094 -12 57 59.67 U F51
2020-07-12 14:19:05 C 21 23 45.174 -12 58 02.99 U F51
2020-07-20 11:56:59 C 21 14 07.180 -13 36 03.64 U F51
2020-07-20 12:14:23 C 21 14 06.218 -13 36 07.24 U F51
2020-07-20 12:31:46 C 21 14 05.261 -13 36 10.87 U F51
2020-07-20 12:49:10 C 21 14 04.313 -13 36 14.52 U F51
2020-07-26 07:41:47 C 21 06 33.43 -14 06 12.0 V G96
2020-07-26 07:48:34 C 21 06 33.02 -14 06 13.8 V G96
2020-07-26 07:55:21 C 21 06 32.69 -14 06 15.1 V G96
2020-07-26 08:02:08 C 21 06 32.30 -14 06 16.3 V G96
2020-08-11 07:08:49 C 20 46 14.789 -15 26 54.62 U F51
2020-08-11 07:27:17 C 20 46 13.855 -15 26 58.08 U F51
2020-08-11 07:45:37 C 20 46 12.939 -15 27 01.75 U F51
2020-08-11 08:03:56 C 20 46 12.019 -15 27 05.42 U F51
2022-10-23 09:42:27 C 03 56 54.738 +22 08 41.14 U F52
2022-10-23 10:01:35 C 03 56 54.087 +22 08 39.39 U F52
2022-10-23 10:40:12 C 03 56 52.778 +22 08 36.09 U F52
2022-10-31 08:57:42 C 03 49 39.703 +21 47 05.15 U F52