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
2010-06-07 23:35:28 C 16 12 45.15 +48 37 48.0 c 585
2010-06-07 23:38:51 C 16 12 44.64 +48 37 49.8 c 585
2010-06-07 23:45:33 C 16 12 43.66 +48 37 54.0 c 585
2010-06-07 23:46:52 C 16 12 43.47 +48 37 55.2 c 585
2010-06-07 23:48:02 C 16 12 43.35 +48 37 55.9 c 585
2010-06-07 23:49:12 C 16 12 43.10 +48 37 56.4 c 585
2010-06-07 23:51:42 C 16 12 42.74 +48 37 58.2 c 585
2010-06-07 23:52:52 C 16 12 42.54 +48 37 59.2 c 585
2010-06-07 23:54:33 C 16 12 42.28 +48 38 00.1 c 585
2010-06-07 23:57:01 C 16 12 41.94 +48 38 01.6 c 585
2010-06-07 23:58:23 C 16 12 41.75 +48 38 02.2 c 585
2010-06-08 00:02:43 C 16 12 41.13 +48 38 05.2 c 585
2010-06-08 00:05:13 C 16 12 40.72 +48 38 06.5 c 585
2010-06-08 00:06:59 C 16 12 40.45 +48 38 07.6 c 585
2010-06-08 00:08:32 C 16 12 40.24 +48 38 09.1 c 585
2010-06-08 00:09:39 C 16 12 40.11 +48 38 09.5 c 585
2010-06-08 00:13:08 C 16 12 39.56 +48 38 11.6 c 585
2010-06-08 00:14:18 C 16 12 39.44 +48 38 13.0 c 585
2010-06-08 00:15:29 C 16 12 39.21 +48 38 13.4 c 585
2010-06-08 00:16:55 C 16 12 38.95 +48 38 14.0 c 585
2010-06-08 00:18:04 C 16 12 38.83 +48 38 15.0 c 585
2010-06-08 00:19:24 C 16 12 38.61 +48 38 16.0 c 585
2010-06-08 00:20:38 C 16 12 38.51 +48 38 16.3 c 585
2010-06-08 00:24:03 C 16 12 37.92 +48 38 18.7 c 585
2010-06-08 00:29:37 C 16 12 37.09 +48 38 22.2 c 585
2010-06-08 08:43:54 C 16 11 25.69 +48 43 44.0 r 703
2010-06-08 08:55:34 C 16 11 24.00 +48 43 51.0 r 703
2010-06-08 09:07:19 C 16 11 22.27 +48 43 58.0 r 703
2010-06-08 09:19:09 C 16 11 20.50 +48 44 05.2 r 703
2010-06-12 02:05:58 C 15 59 39.11 +49 27 16.9 w B19
2010-06-12 02:10:39 C 15 59 38.62 +49 27 18.1 w B19
2010-06-12 02:15:20 C 15 59 38.01 +49 27 20.2 w B19
2010-06-15 05:27:10 C 15 51 16.48 +49 48 12.6 r 703
2010-06-15 05:37:01 C 15 51 15.37 +49 48 14.1 r 703
2010-06-15 05:46:54 C 15 51 14.32 +49 48 16.1 r 703
2010-06-15 05:56:50 C 15 51 13.21 +49 48 17.4 r 703
2010-06-18 06:20:32 C 15 44 22.41 +49 57 44.7 u 448
2010-06-18 06:23:37 C 15 44 22.15 +49 57 45.0 u 448
2010-06-18 06:26:42 C 15 44 21.86 +49 57 45.0 u 448
2010-06-18 06:29:47 C 15 44 21.58 +49 57 45.3 u 448
2010-06-18 06:32:51 C 15 44 21.30 +49 57 45.4 u 448
2010-06-18 21:47:44 C 15 43 04.00 +49 58 40.3 u J51
2010-06-18 22:06:26 C 15 43 02.40 +49 58 41.7 u J51
2010-06-18 22:25:08 C 15 43 00.74 +49 58 42.0 u J51
2010-06-22 05:23:41 C 15 37 00.93 +49 58 16.8 18.0 c 704
2010-06-22 05:40:20 C 15 36 59.78 +49 58 15.3 18.0 c 704
2010-06-22 05:56:58 C 15 36 58.57 +49 58 13.6 17.9 c 704
2010-06-22 06:13:26 C 15 36 57.41 +49 58 12.1 17.8 c 704
2010-06-22 06:30:16 C 15 36 56.27 +49 58 11.9 18.3 c 704
2010-06-29 20:26:55 C 15 27 14.99 +49 32 41.9 r 585