439877 (1999 XM141)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3692232612 ± 4.49e-08
Semi-major axis (a)1.2361088574 AU ± 9.40e-10
Inclination (i)21.62274780° ± 8.91e-06
Long. of Asc. Node (Ω)72.97641246° ± 7.21e-06
Arg. of Perihelion (ω)105.78877635° ± 1.07e-05
Mean Anomaly (M)264.67711196° ± 9.03e-06
Mean Motion (n)0.7171783960°/day ± 8.18e-10
Perihelion dist (q)0.77970871 AU ± 5.55e-08
Aphelion dist (Q)1.69250900 AU ± 5.55e-08
Orbital Period1.37431117 yr ± 1.57e-09
Physical Parameters
H (abs. magnitude)19.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.034497 AU
Observations Used225
Oppositions7
Arc Total1999-2026
First Observation Used1999-12-13
Last Observation Used2026-01-10
Observations (266)
Date Type RA Dec Mag Band Observatory
2010-12-01 09:21:27 C 08 51 10.69 +29 36 16.8 r 703
2010-12-01 09:29:46 C 08 51 13.14 +29 36 42.7 r 703
2010-12-01 10:46:08 C 08 51 35.88 +29 40 40.7 19.1 c 704
2010-12-01 10:56:38 C 08 51 38.61 +29 41 09.2 u H36
2010-12-01 10:58:54 C 08 51 39.28 +29 41 16.5 u H36
2010-12-01 11:01:09 C 08 51 39.95 +29 41 23.6 u H36
2010-12-01 11:03:26 C 08 51 40.64 +29 41 30.5 u H36
2010-12-01 11:04:41 C 08 51 41.37 +29 41 37.1 19.0 c 704
2010-12-01 11:12:53 C 08 51 43.90 +29 42 03.0 o H01
2010-12-01 11:23:28 C 08 51 47.07 +29 42 35.3 19.0 c 704
2010-12-01 11:23:41 C 08 51 47.13 +29 42 35.9 18.8 c 704
2010-12-01 11:30:08 C 08 51 49.07 +29 42 56.5 o H01
2010-12-01 11:34:39 C 08 51 50.59 +29 43 11.7 c 854
2010-12-01 11:36:02 C 08 51 51.06 +29 43 16.9 c 854
2010-12-01 11:37:25 C 08 51 51.44 +29 43 20.3 c 854
2010-12-01 11:38:55 C 08 51 51.70 +29 43 23.7 o H01
2010-12-01 11:42:15 C 08 51 52.67 +29 43 33.8 18.6 c 704
2010-12-01 11:42:29 C 08 51 52.72 +29 43 35.9 18.5 c 704
2010-12-01 11:45:24 C 08 51 53.64 +29 43 43.8 o H01
2010-12-01 12:01:03 C 08 51 58.30 +29 44 32.8 18.7 c 704
2010-12-01 12:01:16 C 08 51 58.38 +29 44 33.2 18.8 c 704
2010-12-01 16:17:35 C 08 53 20.33 +29 57 47.2 u 900
2010-12-01 16:27:51 C 08 53 23.46 +29 58 19.8 u 900
2010-12-03 07:55:06 C 09 06 31.50 +32 05 18.7 r 703
2010-12-03 08:03:42 C 09 06 34.52 +32 05 47.4 r 703
2010-12-03 08:12:24 C 09 06 37.54 +32 06 17.4 r 703
2010-12-03 08:21:04 C 09 06 40.50 +32 06 46.4 r 703
2010-12-04 04:33:47 C 09 13 59.11 +33 14 23.0 v 204
2010-12-04 04:45:02 C 09 14 03.25 +33 15 01.1 v 204
2010-12-04 04:56:41 C 09 14 07.51 +33 15 40.3 v 204
2010-12-05 11:08:24 C 09 26 00.24 +34 59 31.0 18.7 c 704
2010-12-05 11:28:02 C 09 26 08.06 +35 00 39.6 19.1 c 704
2010-12-05 11:47:06 C 09 26 15.68 +35 01 45.6 19.0 c 704
2010-12-05 12:06:27 C 09 26 23.46 +35 02 53.2 18.6 c 704
2010-12-05 12:25:31 C 09 26 31.12 +35 03 58.9 18.8 c 704
2010-12-08 11:03:02 C 09 59 04.49 +39 12 05.8 o H20
2010-12-08 11:05:42 C 09 59 05.76 +39 12 15.4 o H20
2010-12-08 11:08:22 C 09 59 07.04 +39 12 24.3 o H20
2010-12-08 11:11:01 C 09 59 08.62 +39 12 33.0 o H20
2010-12-22 14:35:03 S 13 57 13.296 +47 46 40.30 L C51
2010-12-22 16:10:13 S 13 58 18.643 +47 44 36.38 L C51
2010-12-22 17:45:23 S 13 59 23.782 +47 42 30.53 L C51
2010-12-22 19:20:33 S 14 00 28.666 +47 40 22.33 L C51
2010-12-22 19:20:44 S 14 00 28.819 +47 40 22.91 L C51
2010-12-22 20:55:54 S 14 01 33.509 +47 38 12.48 L C51
2010-12-22 22:31:04 S 14 02 37.944 +47 36 01.12 L C51
2014-09-15 10:27:40 C 03 53 37.88 -12 33 45.0 o 291
2014-09-15 10:46:31 C 03 53 38.11 -12 33 52.0 o 291
2014-09-15 11:05:09 C 03 53 38.34 -12 33 59.5 o 291
2014-10-24 07:11:54 C 03 22 40.87 -18 52 03.0 q 448