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
2014-10-24 08:04:21 C 03 22 35.78 -18 52 15.1 q 448
2014-10-24 08:59:40 C 03 22 30.49 -18 52 27.8 q 448
2014-11-08 07:06:41 C 02 42 56.27 -18 52 54.7 q 448
2014-11-08 07:45:17 C 02 42 51.29 -18 52 44.6 q 448
2014-11-08 08:28:37 C 02 42 45.71 -18 52 33.1 q 448
2014-11-09 07:51:43 C 02 39 51.06 -18 45 38.5 q 448
2014-11-09 08:22:08 C 02 39 47.15 -18 45 28.6 q 448
2014-11-09 09:03:45 C 02 39 41.76 -18 45 14.3 q 448
2014-11-17 05:28:52 C 02 16 01.86 -17 14 15.9 R G45
2014-11-17 05:32:15 C 02 16 01.36 -17 14 14.5 R G45
2014-11-17 05:38:13 C 02 16 00.75 -17 14 10.3 R G45
2014-11-17 05:50:33 C 02 15 59.07 -17 14 03.3 R G45
2015-01-16 00:40:08 C 01 05 25.63 +11 37 58.5 u H21
2015-01-16 00:48:44 C 01 05 25.75 +11 38 09.5 u H21
2015-01-16 00:57:32 C 01 05 25.90 +11 38 20.9 u H21
2015-05-31 09:30:12 C 23 38 44.30 -16 20 16.7 u 807
2015-05-31 09:34:22 C 23 38 44.18 -16 20 44.9 u 807
2015-05-31 09:38:19 C 23 38 44.09 -16 21 11.1 u 807
2015-06-04 00:13:36 S 23 37 52.00 -25 39 51.0 L C51
2015-06-04 03:22:39 S 23 37 50.10 -25 59 16.4 L C51
2015-06-04 04:57:16 S 23 37 49.13 -26 08 57.7 L C51
2015-06-04 06:31:42 S 23 37 48.16 -26 18 37.4 L C51
2015-06-04 08:06:19 S 23 37 47.20 -26 28 16.5 L C51
2015-06-04 11:15:22 S 23 37 45.25 -26 47 31.5 L C51
2015-06-07 08:59:22 C 23 36 58.02 -33 34 22.0 u 807
2015-06-07 09:02:53 C 23 36 57.97 -33 34 41.7 u 807
2015-06-07 09:06:21 C 23 36 57.91 -33 35 01.4 u 807
2015-06-07 09:13:19 C 23 36 57.73 -33 35 40.3 u 807
2015-07-02 10:36:39 C 22 51 11.14 -68 33 28.0 u 807
2015-07-02 10:40:35 C 22 51 10.33 -68 33 34.9 u 807
2015-07-02 10:44:55 C 22 51 09.38 -68 33 42.9 u 807
2015-07-04 05:52:46 C 22 42 46.98 -69 48 06.9 u 807
2015-07-04 05:59:15 C 22 42 45.57 -69 48 17.8 u 807
2015-07-04 06:05:51 C 22 42 44.09 -69 48 29.2 u 807
2015-07-23 05:55:12 C 20 33 20.64 -75 02 00.8 u 807
2015-07-23 05:59:34 C 20 33 19.35 -75 02 00.1 u 807
2015-07-23 06:04:07 C 20 33 17.93 -75 01 59.5 u 807
2015-07-23 06:08:09 C 20 33 16.73 -75 01 59.3 u 807
2015-07-23 06:12:37 C 20 33 15.38 -75 01 58.3 u 807
2015-07-30 02:20:32 C 19 54 21.46 -74 06 11.5 u 807
2015-07-30 02:24:53 C 19 54 20.63 -74 06 09.7 u 807
2015-07-30 02:29:14 C 19 54 19.85 -74 06 07.7 u 807
2015-07-30 02:33:34 C 19 54 18.90 -74 06 05.2 u 807
2015-07-30 02:37:52 C 19 54 18.01 -74 06 03.3 u 807
2021-10-29 08:17:48 C 06 53 15.41 +10 03 17.5 o 691
2021-10-29 08:24:03 C 06 53 16.02 +10 03 21.6 o 691
2021-11-05 02:52:24 C 07 10 05.01 +11 55 47.6 Z C95
2021-11-05 03:06:02 C 07 10 06.48 +11 55 58.6 Z C95
2021-11-08 10:25:12 C 07 19 10.52 +13 06 27.5 V G96
2021-11-08 10:32:47 C 07 19 11.41 +13 06 35.4 V G96