439854 (1998 XA5)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3071831048 ± 7.74e-08
Semi-major axis (a)1.5583005808 AU ± 1.75e-08
Inclination (i)31.75771298° ± 1.66e-05
Long. of Asc. Node (Ω)274.15237535° ± 4.16e-06
Arg. of Perihelion (ω)211.32659630° ± 4.73e-05
Mean Anomaly (M)283.37460518° ± 1.06e-04
Mean Motion (n)0.5066819431°/day ± 8.55e-09
Perihelion dist (q)1.07961697 AU ± 1.21e-07
Aphelion dist (Q)2.03698419 AU ± 1.23e-07
Orbital Period1.94525638 yr ± 3.28e-08
Physical Parameters
H (abs. magnitude)18.73
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.597″
Uncertainty0
Orbit TypeAmor
MOID0.130179 AU
Observations Used257
Oppositions13
Arc Total1997-2023
First Observation Used1997-01-13
Last Observation Used2023-07-15
Observations (266)
Date Type RA Dec Mag Band Observatory
1999-04-13 11:59:08 C 07 23 07.66 -59 12 51.5 422
2001-02-01 15:32:59 C 11 54 42.77 -71 43 32.4 474
2001-02-01 15:36:49 C 11 54 42.83 -71 43 38.2 474
2001-02-01 15:53:09 C 11 54 43.51 -71 44 03.3 474
2001-02-01 15:58:48 C 11 54 43.68 -71 44 13.9 474
2005-07-31 06:19:17 C 16 14 51.04 -21 41 27.2 c 568
2005-07-31 07:23:58 C 16 14 52.20 -21 40 46.1 c 568
2005-07-31 08:27:48 C 16 14 53.37 -21 40 05.3 c 568
2015-06-09 07:45:48 C 20 36 30.31 -06 09 03.2 u H21
2015-06-09 08:02:04 C 20 36 29.74 -06 08 52.1 u H21
2015-06-09 08:17:41 C 20 36 29.21 -06 08 40.8 u H21
2015-06-10 08:11:25 C 20 35 38.52 -05 50 51.2 u H21
2015-06-10 08:24:17 C 20 35 38.00 -05 50 41.2 u H21
2015-06-10 08:39:27 C 20 35 37.44 -05 50 29.8 u H21
2015-06-28 10:47:37 C 20 12 50.404 -00 34 50.97 L F51
2015-06-28 11:24:53 C 20 12 47.820 -00 34 25.25 L F51
2015-06-28 11:43:27 C 20 12 46.524 -00 34 12.62 L F51
2015-07-13 07:19:46 C 19 46 07.40 +03 03 10.4 q H21
2015-07-13 07:28:55 C 19 46 06.60 +03 03 14.3 q H21
2015-07-13 07:38:02 C 19 46 05.89 +03 03 17.9 q H21
2017-06-21 11:17:41 C 20 49 36.679 +03 27 14.19 L F51
2017-06-21 11:34:36 C 20 49 35.909 +03 27 27.51 L F51
2017-06-21 11:51:35 C 20 49 35.124 +03 27 40.79 L F51
2017-06-21 12:08:34 C 20 49 34.346 +03 27 54.06 L F51
2019-06-09 13:06:35 C 21 20 55.687 +04 28 53.70 U F51
2019-06-09 13:23:24 C 21 20 55.512 +04 29 07.85 U F51
2019-06-09 13:40:12 C 21 20 55.284 +04 29 22.37 U F51
2019-06-09 13:57:06 C 21 20 55.084 +04 29 36.86 U F51
2019-06-13 12:50:21 C 21 19 37.263 +05 51 19.97 U F51
2019-06-13 13:25:03 C 21 19 36.614 +05 51 49.81 U F51
2019-06-13 13:42:29 C 21 19 36.275 +05 52 04.75 U F51
2019-07-08 08:33:56 C 20 57 00.21 +14 02 14.7 U I41
2019-07-08 08:40:25 C 20 56 59.81 +14 02 19.8 U I41
2019-07-08 08:44:58 C 20 56 59.52 +14 02 23.3 U I41
2019-07-08 08:47:36 C 20 56 59.37 +14 02 24.8 U I41
2019-07-08 08:49:32 C 20 56 59.23 +14 02 25.9 U I41
2019-07-08 08:51:30 C 20 56 59.16 +14 02 27.6 U I41
2019-07-08 08:52:47 C 20 56 59.05 +14 02 28.5 U I41
2019-07-08 08:57:21 C 20 56 58.78 +14 02 31.3 U I41
2019-07-08 09:01:16 C 20 56 58.50 +14 02 34.3 U I41
2019-07-08 09:02:33 C 20 56 58.45 +14 02 35.8 U I41
2019-07-08 09:09:05 C 20 56 58.10 +14 02 40.4 U I41
2019-07-08 09:14:17 C 20 56 57.73 +14 02 44.3 U I41
2019-07-08 09:22:03 C 20 56 57.28 +14 02 50.3 U I41
2019-07-08 09:22:44 C 20 56 57.21 +14 02 50.6 U I41
2019-07-08 09:52:37 C 20 56 55.39 +14 03 12.5 U I41
2019-07-08 09:55:12 C 20 56 55.27 +14 03 14.2 U I41
2019-07-08 09:56:31 C 20 56 55.16 +14 03 15.3 U I41
2019-07-08 10:04:18 C 20 56 54.70 +14 03 21.0 U I41
2021-06-17 12:39:54 C 21 40 40.861 +12 08 48.78 U F51