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
2022-10-31 09:17:44 C 03 49 38.809 +21 47 02.58 U F52
2022-10-31 09:57:50 C 03 49 37.027 +21 46 57.33 U F52
2022-11-16 07:37:34 C 03 30 06.720 +20 38 50.19 U F52
2022-11-16 08:15:46 C 03 30 04.473 +20 38 42.04 U F52
2022-11-16 08:35:01 C 03 30 03.347 +20 38 37.93 U F52
2022-11-16 09:14:57 C 03 30 00.713 +20 38 27.82 V G96
2022-11-16 09:22:19 C 03 30 00.259 +20 38 26.12 V G96
2022-11-16 09:29:42 C 03 29 59.852 +20 38 24.36 V G96
2022-11-16 09:37:05 C 03 29 59.420 +20 38 22.92 V G96
2022-11-25 07:11:24 C 03 17 30.697 +19 47 40.46 U F51
2022-11-25 07:30:44 C 03 17 29.521 +19 47 35.88 U F51
2022-11-25 07:50:04 C 03 17 28.359 +19 47 30.89 U F51
2022-11-25 08:11:44 C 03 17 27.059 +19 47 25.38 U F51
2022-11-29 05:45:20 C 03 12 00.202 +19 23 30.80 V G96
2022-11-29 05:52:54 C 03 11 59.766 +19 23 29.15 V G96
2022-11-29 06:00:28 C 03 11 59.287 +19 23 26.77 V G96
2022-11-29 06:08:04 C 03 11 58.844 +19 23 24.86 V G96
2022-12-14 09:01:54 C 02 53 11.483 +17 51 37.11 U F52
2022-12-14 09:21:16 C 02 53 10.609 +17 51 32.73 U F52
2022-12-14 09:40:36 C 02 53 09.696 +17 51 27.95 U F52
2022-12-14 09:59:58 C 02 53 08.839 +17 51 23.01 U F52
2022-12-17 02:36:18 C 02 50 26.081 +17 36 34.34 V G96
2022-12-17 02:44:21 C 02 50 25.768 +17 36 32.72 V G96
2022-12-17 02:52:23 C 02 50 25.400 +17 36 30.02 V G96
2022-12-17 03:00:27 C 02 50 25.105 +17 36 28.44 V G96
2022-12-25 03:45:20 C 02 43 47.906 +16 57 48.31 V G96
2022-12-25 03:53:25 C 02 43 47.633 +16 57 46.33 V G96
2022-12-25 04:01:31 C 02 43 47.431 +16 57 45.11 V G96
2022-12-25 04:09:36 C 02 43 47.143 +16 57 44.57 V G96
2022-12-26 03:47:58 C 02 43 08.447 +16 53 39.05 V G96
2022-12-26 03:56:03 C 02 43 08.224 +16 53 37.72 V G96
2022-12-26 04:04:08 C 02 43 07.972 +16 53 36.20 V G96
2022-12-26 04:12:13 C 02 43 07.741 +16 53 34.76 V G96
2025-10-17 06:55:36 C 01 15 06.984 +10 34 16.50 V V00
2025-10-17 07:03:40 C 01 15 06.671 +10 34 14.41 V V00
2025-10-17 07:11:43 C 01 15 06.325 +10 34 12.32 V V00
2025-10-17 07:19:45 C 01 15 05.972 +10 34 10.24 V V00