85818 (1998 XM4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4160289487 ± 3.68e-09
Semi-major axis (a)1.6566352039 AU ± 1.12e-09
Inclination (i)62.71599647° ± 5.04e-07
Long. of Asc. Node (Ω)235.63985899° ± 5.34e-07
Arg. of Perihelion (ω)301.21649960° ± 1.17e-06
Mean Anomaly (M)131.39619181° ± 2.13e-06
Mean Motion (n)0.4622447073°/day ± 4.68e-10
Perihelion dist (q)0.96742700 AU ± 6.12e-09
Aphelion dist (Q)2.34584341 AU ± 6.29e-09
Orbital Period2.13226083 yr ± 2.16e-09
Physical Parameters
H (abs. magnitude)15.42
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.022″
Uncertainty0
Orbit TypeApollo
MOID0.109072 AU
Observations Used1396
Gaia Obs Used123
Oppositions13
Arc Total1993-2025
First Observation Used1993-05-24
Last Observation Used2025-10-24
Observations (1511)
Date Type RA Dec Mag Band Observatory
2024-10-15 12:56:27 C 07 05 21.629 -01 19 35.58 V T08
2024-10-15 13:04:25 C 07 05 22.126 -01 19 54.48 V T08
2024-10-23 23:18:24 C 07 18 18.216 -10 08 59.21 V M22
2024-10-23 23:23:04 C 07 18 18.511 -10 09 12.64 V M22
2024-10-23 23:33:20 C 07 18 19.162 -10 09 42.19 V M22
2024-10-23 23:40:50 C 07 18 19.613 -10 10 03.47 V M22
2024-10-24 08:12:54 C 07 18 51.948 -10 34 39.68 V W68
2024-10-24 08:18:07 C 07 18 52.267 -10 34 54.77 V W68
2024-10-24 08:43:05 C 07 18 53.834 -10 36 07.02 V W68
2024-10-24 08:47:41 C 07 18 54.137 -10 36 19.91 V W68
2024-10-26 01:13:57 C 07 21 28.531 -12 35 18.42 V M22
2024-10-26 01:15:54 C 07 21 28.658 -12 35 24.32 V M22
2024-10-26 01:18:31 C 07 21 28.824 -12 35 32.14 V M22
2024-10-26 01:19:10 C 07 21 28.860 -12 35 33.86 V M22
2024-10-26 01:27:00 C 07 21 29.347 -12 35 57.59 V M22
2024-10-26 01:27:40 C 07 21 29.381 -12 35 59.68 V M22
2024-10-30 07:56:36 C 07 28 00.218 -17 55 06.67 V W68
2024-10-30 08:00:37 C 07 28 00.466 -17 55 19.74 V W68
2024-10-30 08:09:09 C 07 28 00.994 -17 55 47.50 V W68
2024-10-31 06:50:41 C 07 29 27.886 -19 09 39.85 V W68
2024-10-31 06:58:32 C 07 29 28.351 -19 10 05.84 V W68
2024-10-31 07:15:39 C 07 29 29.412 -19 11 02.15 V W68
2024-11-01 00:52:02 C 07 30 36.821 -20 09 07.09 V M22
2024-11-01 00:56:35 C 07 30 37.070 -20 09 21.92 V M22
2024-11-01 01:05:46 C 07 30 37.656 -20 09 52.92 V M22
2024-11-01 01:20:06 C 07 30 38.520 -20 10 40.62 V M22
2024-11-03 06:39:19 C 07 34 03.240 -23 10 23.30 V W68
2024-11-03 06:45:14 C 07 34 03.593 -23 10 43.61 V W68
2024-11-03 06:53:09 C 07 34 04.090 -23 11 10.90 V W68
2024-11-03 07:07:44 C 07 34 04.982 -23 12 01.12 V W68
2024-11-04 06:50:43 C 07 35 36.420 -24 33 38.92 V W68
2024-11-04 06:55:17 C 07 35 36.691 -24 33 54.68 V W68
2024-11-04 07:04:30 C 07 35 37.274 -24 34 26.44 V W68
2024-11-07 06:44:23 C 07 40 15.629 -28 46 26.76 V W68
2024-11-07 06:48:57 C 07 40 15.924 -28 46 43.14 V W68
2024-11-07 07:06:40 C 07 40 17.028 -28 47 46.36 V W68
2024-11-08 06:34:39 C 07 41 49.152 -30 11 45.06 V W68
2024-11-08 06:39:13 C 07 41 49.452 -30 12 01.66 V W68
2024-11-08 06:47:11 C 07 41 49.949 -30 12 30.24 V W68
2024-11-11 06:27:47 C 07 46 35.071 -34 32 11.72 V W68
2024-11-11 06:32:24 C 07 46 35.362 -34 32 28.50 V W68
2024-11-11 06:40:21 C 07 46 35.863 -34 32 57.73 V W68
2024-11-11 06:57:50 C 07 46 37.003 -34 34 01.70 V W68
2024-11-11 08:42:19 C 07 46 43.692 -34 40 23.84 V W68
2024-11-13 01:25:32 C 07 49 29.316 -37 09 17.17 V M22
2024-11-13 01:36:33 C 07 49 30.034 -37 09 57.42 V M22
2024-11-13 01:58:25 C 07 49 31.445 -37 11 17.59 V M22
2024-11-15 07:46:50 C 07 53 14.950 -40 28 24.42 V W68
2024-11-15 08:36:23 C 07 53 18.264 -40 31 26.11 V W68
2024-11-15 08:39:30 C 07 53 18.451 -40 31 37.13 V W68