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
1998-06-22 21:36:25 C 18 00 51.21 -13 43 30.9 z 596
1998-06-22 22:38:38 C 18 00 53.34 -13 36 03.3 046
1998-06-22 22:39:50 C 18 00 53.39 -13 35 54.4 046
1998-06-22 22:41:00 C 18 00 53.45 -13 35 45.6 046
1998-06-22 22:41:53 C 18 00 53.48 -13 35 39.4 046
1998-06-22 22:44:55 C 18 00 53.57 -13 35 16.4 z 540
1998-06-22 22:46:24 C 18 00 53.63 -13 35 05.4 z 540
1998-06-22 22:47:49 C 18 00 53.67 -13 34 55.2 z 540
1998-06-24 23:49:31 C 18 03 18.85 -08 07 33.2 046
1998-06-24 23:50:45 C 18 03 18.89 -08 07 26.0 046
1998-06-24 23:51:37 C 18 03 18.92 -08 07 20.3 046
1998-06-24 23:52:35 C 18 03 18.94 -08 07 14.6 046
1998-06-25 05:56:03 C 18 03 36.89 -07 30 52.1 17.8 a 704
1998-06-25 06:22:33 C 18 03 37.57 -07 28 15.2 a 704
1998-06-25 06:49:04 C 18 03 38.23 -07 25 40.6 18.3 a 704
1998-06-25 07:15:48 C 18 03 38.89 -07 23 04.8 18.7 a 704
1998-06-25 07:42:24 C 18 03 39.69 -07 20 28.0 19.2 a 704
1998-06-28 21:18:52 C 18 06 52.49 -00 17 17.5 557
1998-06-28 21:35:36 C 18 06 52.90 -00 16 07.3 046
1998-06-28 21:37:50 C 18 06 52.96 -00 15 58.5 046
1998-06-28 21:38:57 C 18 06 52.97 -00 15 53.5 046
1998-06-28 21:40:05 C 18 06 52.97 -00 15 49.4 046
1998-06-28 21:41:43 C 18 06 52.98 -00 15 42.8 046
1998-06-28 21:46:09 C 18 06 53.08 -00 15 24.3 557
1998-06-28 21:47:50 C 18 06 53.11 -00 15 18.6 557
1998-06-30 14:00:51 C 18 08 06.62 +02 17 52.4 z 402
1998-06-30 14:02:22 C 18 08 06.61 +02 17 59.1 z 402
1998-06-30 14:03:52 C 18 08 06.60 +02 18 04.0 z 402
1998-07-02 15:03:15 C 18 09 26.62 +04 53 48.3 360
1998-07-02 15:07:14 C 18 09 26.68 +04 54 00.1 360
1998-07-02 15:20:00 C 18 09 26.85 +04 54 36.6 360
1998-07-03 00:45:05 C 18 09 40.71 +05 20 57.7 557
1998-07-03 00:47:39 C 18 09 40.80 +05 21 04.6 557
1998-07-03 00:50:16 C 18 09 40.83 +05 21 11.8 557
1998-07-03 00:52:56 C 18 09 40.88 +05 21 18.5 557
1998-07-18 13:58:35 C 18 18 03.55 +14 15 28.5 z 402
1998-07-18 14:00:06 C 18 18 03.51 +14 15 30.0 z 402
1998-07-18 14:01:37 C 18 18 03.52 +14 15 30.6 z 402
1998-07-19 21:32:26 C 18 18 47.26 +14 32 10.1 046
1998-07-19 21:35:17 C 18 18 47.28 +14 32 10.9 046
1998-07-19 21:37:54 C 18 18 47.34 +14 32 12.9 046
1998-07-19 21:40:26 C 18 18 47.39 +14 32 13.2 046
1998-07-19 22:18:52 C 18 18 48.11 +14 32 33.2 557
1998-07-19 22:46:35 C 18 18 48.53 +14 32 45.6 557
1998-07-19 22:50:26 C 18 18 48.61 +14 32 47.6 557
1998-07-24 22:51:19 C 18 21 45.72 +15 14 12.3 z 598
1998-07-24 22:58:42 C 18 21 45.86 +15 14 14.3 z 598
1998-07-24 23:07:16 C 18 21 46.07 +15 14 15.9 z 598
1998-07-24 23:14:29 C 18 21 46.23 +15 14 17.3 z 598
1998-07-28 05:22:00 C 18 23 54.31 +15 26 12.2 a 696