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
2002-06-18 06:11:17 C 15 46 35.21 -20 55 43.0 17.9 c 704
2002-06-18 06:30:19 C 15 46 36.09 -20 55 42.2 17.8 c 704
2002-06-18 06:49:21 C 15 46 36.97 -20 55 41.0 17.7 c 704
2002-06-25 09:52:32 C 15 55 14.92 -20 48 53.6 18.7 c 608
2002-06-25 10:08:37 C 15 55 15.65 -20 48 53.2 18.7 c 608
2002-06-25 10:24:29 C 15 55 16.37 -20 48 52.5 18.9 c 608
2002-07-05 04:28:49 C 16 06 58.51 -20 49 41.5 18.8 c 704
2002-07-05 04:47:53 C 16 06 59.41 -20 49 42.5 19.4 c 704
2002-07-05 05:06:58 C 16 07 00.27 -20 49 43.4 19.1 c 704
2002-07-05 05:26:05 C 16 07 01.20 -20 49 43.2 19.0 c 704
2002-07-05 05:45:16 C 16 07 02.07 -20 49 43.9 19.1 c 704
2002-07-07 01:30:29 C 16 09 14.88 -20 50 39.3 m 859
2002-07-16 04:06:07 C 16 20 35.61 -21 00 04.0 711
2002-07-16 04:38:40 C 16 20 37.22 -21 00 05.1 711
2002-07-16 04:52:20 C 16 20 37.92 -21 00 06.0 711
2004-11-04 08:34:14 C 01 53 36.85 +14 04 42.7 d 291
2004-11-04 08:40:08 C 01 53 36.62 +14 04 41.0 d 291
2008-11-24 07:34:20 C 05 45 57.33 +24 15 44.9 19.6 c 704
2008-11-24 07:52:25 C 05 45 56.65 +24 15 45.0 20.1 c 704
2008-11-24 08:10:26 C 05 45 56.02 +24 15 44.2 20.0 c 704
2008-11-25 06:13:46 C 05 45 07.47 +24 14 37.2 r H45
2008-11-25 06:18:18 C 05 45 07.30 +24 14 37.1 r H45
2008-11-25 06:20:13 C 05 45 07.24 +24 14 36.7 r H45
2008-11-25 06:26:05 C 05 45 07.00 +24 14 36.3 r H45
2008-11-25 06:29:28 C 05 45 06.86 +24 14 36.2 r H45
2008-12-02 06:16:26 C 05 37 37.11 +24 04 02.5 19.6 c 704
2008-12-02 06:34:31 C 05 37 36.10 +24 04 00.5 19.8 c 704
2008-12-02 06:52:37 C 05 37 35.13 +24 03 58.9 19.3 c 704
2008-12-02 07:10:52 C 05 37 34.19 +24 03 57.2 19.5 c 704
2008-12-02 07:28:56 C 05 37 33.20 +24 03 56.7 19.7 c 704
2008-12-20 19:15:58 C 05 08 20.88 +23 09 18.8 o A78
2008-12-20 19:20:27 C 05 08 20.58 +23 09 17.2 o A78
2008-12-20 19:22:01 C 05 08 20.43 +23 09 17.1 o A78
2008-12-20 19:27:12 C 05 08 20.04 +23 09 16.5 o A78
2008-12-22 05:43:41 C 05 05 44.08 +23 03 16.2 r G96
2008-12-22 05:51:23 C 05 05 43.47 +23 03 14.9 r G96
2008-12-22 05:59:09 C 05 05 42.86 +23 03 13.6 r G96
2008-12-22 06:06:52 C 05 05 42.28 +23 03 12.2 r G96
2008-12-26 23:07:59 C 04 57 07.28 +22 41 33.1 r B67
2008-12-26 23:13:45 C 04 57 06.83 +22 41 31.8 r B67
2008-12-26 23:19:35 C 04 57 06.38 +22 41 30.3 r B67
2008-12-30 04:53:41 C 04 51 20.17 +22 25 33.3 19.2 c 704
2008-12-30 05:12:10 C 04 51 18.76 +22 25 30.0 19.2 c 704
2008-12-30 05:30:52 C 04 51 17.32 +22 25 26.1 19.1 c 704
2008-12-30 05:49:18 C 04 51 15.93 +22 25 23.0 19.3 c 704
2008-12-30 06:07:43 C 04 51 14.52 +22 25 17.8 19.1 c 704
2009-01-17 03:32:02 C 04 25 41.21 +20 54 45.3 18.7 c 704
2009-01-17 03:49:24 C 04 25 40.46 +20 54 42.1 18.9 c 704
2009-01-17 04:41:23 C 04 25 38.13 +20 54 32.8 18.9 c 704
2009-01-22 03:35:40 C 04 21 30.96 +20 33 47.6 18.9 c 704