1998 MS2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4020007340 ± 1.12e-07
Semi-major axis (a)1.7322655454 AU ± 3.77e-09
Inclination (i)19.24762117° ± 2.31e-05
Long. of Asc. Node (Ω)268.33000223° ± 6.44e-06
Arg. of Perihelion (ω)320.38704843° ± 4.33e-05
Mean Anomaly (M)26.33675783° ± 2.78e-05
Mean Motion (n)0.4323053151°/day ± 1.41e-09
Perihelion dist (q)1.03589352 AU ± 1.94e-07
Aphelion dist (Q)2.42863757 AU ± 1.94e-07
Orbital Period2.27993099 yr ± 7.45e-09
Physical Parameters
H (abs. magnitude)20.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.548″
Uncertainty0
Orbit TypeAmor
MOID0.079985 AU
Observations Used135
Oppositions14
Arc Total1998-2023
First Observation Used1998-06-20
Last Observation Used2023-01-12
Observations (153)
Date Type RA Dec Mag Band Observatory
1998-06-20 06:21:09 c 17 56 42.19 -22 28 51.2 h 703
1998-06-20 07:20:07 c 17 56 45.27 -22 19 43.7 h 703
1998-06-20 08:58:30 c 17 56 50.54 -22 04 36.3 h 703
1998-06-20 09:17:23 c 17 56 51.45 -22 01 42.1 h 703
1998-06-20 09:20:14 c 17 56 51.59 -22 01 15.8 h 703
1998-06-20 22:04:45 C 17 57 51.51 -20 07 09.3 z 540
1998-06-20 22:06:44 C 17 57 51.62 -20 06 51.5 z 540
1998-06-20 22:08:44 C 17 57 51.66 -20 06 34.0 z 540
1998-06-20 22:12:44 C 17 57 51.95 -20 06 00.3 z 540
1998-06-21 05:51:06 c 17 58 24.98 -18 59 37.3 h 703
1998-06-21 05:52:03 C 17 58 23.55 -18 59 35.1 z 734
1998-06-21 05:53:31 c 17 58 25.10 -18 59 16.7 h 703
1998-06-21 05:54:47 C 17 58 23.67 -18 59 12.1 z 734
1998-06-21 05:57:35 C 17 58 23.75 -18 58 46.7 z 734
1998-06-21 06:02:29 c 17 58 25.50 -18 57 59.4 h 703
1998-06-21 06:38:59 C 17 58 27.76 -18 52 48.1 z 670
1998-06-21 06:42:00 C 17 58 27.91 -18 52 22.6 z 670
1998-06-21 06:49:59 C 17 58 28.28 -18 51 15.2 z 670
1998-06-21 07:05:00 C 17 58 28.96 -18 49 07.7 z 670
1998-06-21 07:34:00 C 17 58 30.25 -18 45 01.1 z 670
1998-06-21 08:11:21 C 17 58 32.27 -18 39 56.2 658
1998-06-21 08:13:12 C 17 58 32.37 -18 39 41.1 658
1998-06-21 08:15:12 C 17 58 32.45 -18 39 24.2 658
1998-06-21 20:33:21 C 17 59 23.03 -16 57 23.0 046
1998-06-21 20:34:17 C 17 59 23.08 -16 57 16.0 046
1998-06-21 20:35:34 C 17 59 23.15 -16 57 05.3 046
1998-06-21 20:36:27 C 17 59 23.19 -16 56 58.9 046
1998-06-21 21:57:04 C 17 59 27.29 -16 46 06.0 z 104
1998-06-21 21:58:54 C 17 59 27.36 -16 45 50.3 z 104
1998-06-21 22:02:20 C 17 59 27.53 -16 45 23.7 z 104
1998-06-21 22:03:59 C 17 59 27.62 -16 45 10.5 z 104
1998-06-21 22:27:27 C 17 59 28.31 -16 42 05.6 046
1998-06-21 22:28:31 C 17 59 28.37 -16 41 56.1 046
1998-06-21 22:29:29 C 17 59 28.45 -16 41 48.4 046
1998-06-21 22:30:38 C 17 59 28.43 -16 41 39.8 046
1998-06-21 22:35:19 C 17 59 28.78 -16 40 58.4 120
1998-06-21 22:38:27 C 17 59 28.83 -16 40 33.5 120
1998-06-21 22:41:21 C 17 59 28.98 -16 40 08.7 120
1998-06-21 22:45:47 C 17 59 29.16 -16 39 35.5 120
1998-06-22 00:15:27 C 17 59 38.17 -16 26 06.5 z 860
1998-06-22 00:18:07 C 17 59 38.42 -16 25 42.9 z 860
1998-06-22 00:26:40 C 17 59 38.64 -16 24 34.9 z 860
1998-06-22 04:37:19 C 17 59 48.26 -15 51 34.6 z 860
1998-06-22 12:37:10 C 18 00 21.59 -14 49 23.2 426
1998-06-22 12:41:19 C 18 00 21.79 -14 48 51.8 426
1998-06-22 12:53:36 C 18 00 22.23 -14 47 19.0 426
1998-06-22 12:58:36 C 18 00 22.47 -14 46 41.4 426
1998-06-22 21:25:05 C 18 00 50.69 -13 44 53.5 z 596
1998-06-22 21:27:55 C 18 00 50.84 -13 44 32.8 z 596
1998-06-22 21:30:31 C 18 00 50.95 -13 44 13.6 z 596