1998 FM9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4424165006 ± 2.30e-07
Semi-major axis (a)2.2883591015 AU ± 6.58e-08
Inclination (i)10.34886241° ± 2.49e-05
Long. of Asc. Node (Ω)162.30972142° ± 5.36e-05
Arg. of Perihelion (ω)32.18099029° ± 1.51e-04
Mean Anomaly (M)351.72725057° ± 1.44e-04
Mean Motion (n)0.2847252679°/day ± 1.23e-08
Perihelion dist (q)1.27595128 AU ± 5.27e-07
Aphelion dist (Q)3.30076693 AU ± 5.34e-07
Orbital Period3.46167479 yr ± 1.49e-07
Physical Parameters
H (abs. magnitude)19.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.768″
Uncertainty0
Orbit TypeAmor
MOID0.293620 AU
Observations Used130
Oppositions17
Arc Total1998-2022
First Observation Used1998-03-03
Last Observation Used2022-01-22
Observations (131)
Date Type RA Dec Mag Band Observatory
1998-03-28 06:33:23 C 11 24 38.86 +19 41 19.3 658
1998-03-28 16:51:29 C 11 25 15.80 +19 53 05.1 z 402
1998-03-28 16:54:29 C 11 25 15.91 +19 53 06.0 z 402
1998-03-28 16:57:30 C 11 25 16.13 +19 53 11.3 z 402
1998-03-29 13:01:18 C 11 26 32.98 +20 16 01.2 422
1998-03-29 13:04:48 C 11 26 33.16 +20 16 05.6 422
1998-03-29 13:08:17 C 11 26 33.36 +20 16 09.6 422
1998-03-29 23:00:17 C 11 27 10.84 +20 26 18.0 046
1998-03-29 23:02:13 C 11 27 10.98 +20 26 20.4 046
1998-03-29 23:03:59 C 11 27 11.07 +20 26 22.2 046
1998-03-29 23:05:47 C 11 27 11.17 +20 26 24.1 046
1998-03-31 00:03:27 C 11 28 48.12 +20 52 55.7 557
1998-03-31 00:12:03 C 11 28 48.64 +20 53 05.0 557
1998-03-31 13:16:14 C 11 29 41.47 +21 06 43.6 z 402
1998-03-31 13:19:14 C 11 29 41.80 +21 06 47.0 z 402
1998-03-31 13:22:15 C 11 29 41.94 +21 06 50.7 z 402
1998-03-31 20:49:35 C 11 30 12.03 +21 14 20.0 c 106
1998-03-31 21:09:10 C 11 30 13.35 +21 14 39.4 z 587
1998-03-31 21:09:32 C 11 30 13.33 +21 14 40.7 c 106
1998-03-31 21:16:39 C 11 30 13.76 +21 14 47.2 z 587
1998-03-31 21:28:50 C 11 30 14.43 +21 15 00.1 c 106
1998-04-02 03:16:28 C 11 32 17.15 +21 44 27.7 18.3 a 704
1998-04-02 03:45:50 C 11 32 18.89 +21 44 56.3 18.6 a 704
1998-04-02 04:14:55 C 11 32 20.84 +21 45 25.1 18.5 a 704
1998-04-02 05:14:00 C 11 32 24.45 +21 46 19.7 19.1 a 704
1998-04-02 15:18:30 C 11 33 05.65 +21 55 55.9 360
1998-04-02 15:24:29 C 11 33 06.00 +21 56 01.4 360
1998-04-02 15:30:29 C 11 33 06.39 +21 56 07.6 360
1998-04-03 03:22:14 C 11 33 58.03 +22 07 08.9 18.2 a 704
1998-04-03 03:51:28 C 11 33 59.93 +22 07 38.3 19.7 a 704
1998-04-03 04:20:50 C 11 34 01.76 +22 08 03.8 19.7 a 704
1998-04-03 04:50:09 C 11 34 03.63 +22 08 33.4 19.1 a 704
1998-04-07 01:23:18 C 11 40 49.93 +23 26 00.0 557
1998-04-07 01:26:40 C 11 40 50.45 +23 26 02.5 557
1998-04-07 01:30:00 C 11 40 50.72 +23 26 05.2 557
1998-04-15 08:34:20 C 11 56 58.53 +25 20 16.4 658
1998-04-15 08:41:36 C 11 56 59.13 +25 20 18.7 658
1998-04-15 08:47:43 C 11 56 59.63 +25 20 21.3 658
1998-04-16 03:28:22 C 11 58 37.11 +25 27 25.1 19.2 a 704
1998-04-16 03:43:28 C 11 58 38.28 +25 27 29.4 19.2 a 704
1998-04-16 03:58:27 C 11 58 39.12 +25 27 36.0 20.0 a 704
1998-04-16 13:08:08 C 11 59 26.24 +25 30 45.9 z 402
1998-04-16 13:11:08 C 11 59 26.55 +25 30 46.8 z 402
1998-04-16 13:14:07 C 11 59 26.75 +25 30 48.0 z 402
1998-04-17 22:44:47 C 12 02 20.69 +25 40 57.3 118
1998-04-17 22:48:50 C 12 02 20.99 +25 40 58.9 118
1998-04-19 12:14:13 C 12 05 39.35 +25 50 09.9 z 402
1998-04-19 12:17:14 C 12 05 39.51 +25 50 09.2 z 402
1998-04-19 12:20:13 C 12 05 39.82 +25 50 10.9 z 402
1998-04-22 01:10:14 C 12 11 03.84 +25 59 28.4 557