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
1998-04-22 01:17:50 C 12 11 04.44 +25 59 28.8 557
1998-04-22 01:21:39 C 12 11 04.86 +25 59 30.1 557
1998-04-23 01:01:33 C 12 13 12.68 +26 01 25.9 557
1998-04-23 01:04:54 C 12 13 13.01 +26 01 25.6 557
1998-04-24 07:52:08 C 12 16 01.74 +26 02 45.2 o 566
1998-04-24 08:22:17 C 12 16 04.42 +26 02 45.7 o 566
1998-04-27 21:54:04 C 12 23 54.26 +25 57 16.3 118
1998-04-27 22:03:16 C 12 23 55.06 +25 57 15.2 118
1998-04-27 22:06:36 C 12 23 55.36 +25 57 14.6 118
1998-05-01 21:10:10 C 12 32 44.96 +25 38 01.7 557
1998-05-01 21:13:31 C 12 32 45.30 +25 38 00.6 557
1998-05-01 21:16:51 C 12 32 45.52 +25 37 59.6 557
2005-04-13 09:56:47 C 16 45 00.03 +04 40 04.0 r 703
2005-04-13 10:06:04 C 16 45 00.41 +04 40 11.6 r 703
2005-04-13 10:15:16 C 16 45 00.93 +04 40 18.4 r 703
2005-04-13 10:24:27 C 16 45 01.32 +04 40 25.0 r 703
2005-06-13 08:06:19 C 16 41 29.58 +06 36 47.0 r G96
2005-06-13 08:09:20 C 16 41 29.50 +06 36 45.1 r G96
2005-06-13 08:12:17 C 16 41 29.47 +06 36 43.4 r G96
2012-06-12 13:10:47 C 18 59 12.823 +00 41 21.08 L F51
2012-06-12 13:26:58 C 18 59 12.076 +00 41 18.01 L F51
2019-07-05 12:00:17 C 20 13 14.478 -03 57 39.69 U F52
2019-07-05 12:03:04 C 20 13 14.336 -03 57 40.35 U F52
2019-07-05 12:18:03 C 20 13 13.602 -03 57 45.14 U F52
2019-07-05 12:20:50 C 20 13 13.477 -03 57 46.30 U F52
2019-07-05 12:35:49 C 20 13 12.736 -03 57 50.93 U F52
2019-07-05 12:38:40 C 20 13 12.591 -03 57 52.01 U F52
2019-07-05 12:53:35 C 20 13 11.845 -03 57 56.55 U F52
2022-01-22 02:24:51 C 05 02 38.05 +06 38 22.3 u H21
2022-01-22 02:38:05 C 05 02 37.67 +06 38 26.0 u H21
2022-01-22 02:53:04 C 05 02 37.27 +06 38 29.9 u H21