11398 (1998 YP11)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3890925931 ± 1.26e-02
Semi-major axis (a)1.7209976315 AU ± 6.54e-03
Inclination (i)15.02091781° ± 1.07e+00
Long. of Asc. Node (Ω)144.71297369° ± 5.91e+00
Arg. of Perihelion (ω)74.76867270° ± 6.17e+00
Mean Anomaly (M)281.68217657° ± 4.35e+00
Mean Motion (n)0.4365579156°/day ± 2.49e-03
Perihelion dist (q)1.05137020 AU ± 2.20e-02
Aphelion dist (Q)2.39062506 AU ± 2.35e-02
Orbital Period2.25772171 yr ± 1.29e-02
NGA Modelr2
A24.42027461e-07 AU/d²
Physical Parameters
H (abs. magnitude)16.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.212″
Uncertainty0
Orbit TypeAmor
MOID0.203136 AU
Observations Used3456
Gaia Obs Used159
Oppositions19
Arc Total1983-2026
First Observation Used1983-01-05
Last Observation Used2026-01-12
Observations (3624)
Date Type RA Dec Mag Band Observatory
2008-07-16 07:41:31 C 19 12 46.79 +10 35 37.4 r H45
2008-07-16 07:43:48 C 19 12 46.74 +10 35 31.8 r H45
2008-07-18 03:58:57 C 19 12 17.98 +08 49 44.2 r H53
2008-07-18 04:00:13 C 19 12 17.89 +08 49 41.6 r H53
2008-07-18 04:01:18 C 19 12 17.95 +08 49 38.7 r H53
2008-07-18 04:02:14 C 19 12 17.89 +08 49 36.3 r H53
2008-07-18 04:03:13 C 19 12 17.90 +08 49 34.6 r H53
2008-07-18 04:04:21 C 19 12 17.88 +08 49 31.2 r H53
2008-07-18 04:26:12 C 19 12 18.22 +08 48 39.7 o 669
2008-07-18 05:28:17 C 19 12 17.18 +08 46 12.5 o 669
2008-07-18 05:39:04 C 19 12 17.03 +08 45 46.9 o 669
2008-07-18 22:25:26 C 19 12 07.12 +08 06 13.5 r J51
2008-07-18 22:29:18 C 19 12 07.07 +08 06 04.4 r J51
2008-07-18 22:33:10 C 19 12 07.02 +08 05 55.3 r J51
2008-07-20 03:42:00 C 19 11 51.02 +06 57 42.2 r H53
2008-07-20 03:44:02 C 19 11 51.00 +06 57 37.7 r H53
2008-07-20 03:45:05 C 19 11 50.96 +06 57 35.1 r H53
2008-07-20 03:46:16 C 19 11 50.95 +06 57 32.0 r H53
2008-07-20 03:47:25 C 19 11 50.96 +06 57 29.3 r H53
2008-07-20 03:51:40 C 19 11 50.87 +06 57 19.7 r H53
2008-07-20 08:15:25 C 19 11 47.31 +06 47 08.1 r H45
2008-07-20 08:17:32 C 19 11 47.29 +06 47 03.0 r H45
2008-07-20 08:20:26 C 19 11 47.26 +06 46 56.7 r H45
2008-07-20 08:22:50 C 19 11 47.24 +06 46 51.3 r H45
2008-07-20 08:25:04 C 19 11 47.19 +06 46 45.6 r H45
2008-07-21 02:57:39 C 19 11 40.21 +06 03 58.4 r H53
2008-07-21 02:59:26 C 19 11 40.16 +06 03 54.2 r H53
2008-07-21 03:00:38 C 19 11 40.16 +06 03 51.5 r H53
2008-07-21 03:01:45 C 19 11 40.14 +06 03 48.7 r H53
2008-07-21 03:02:56 C 19 11 40.17 +06 03 46.0 r H53
2008-07-21 03:04:14 C 19 11 40.13 +06 03 43.1 r H53
2008-07-21 22:08:57 C 19 11 31.88 +05 20 06.8 r J59
2008-07-21 22:21:10 C 19 11 31.75 +05 19 38.8 r J59
2008-07-21 22:29:08 C 19 11 31.67 +05 19 20.9 r J59
2008-07-22 00:22:08 C 19 11 29.62 +05 15 03.4 15.9 r C20
2008-07-22 00:26:51 C 19 11 29.57 +05 14 53.1 15.8 r C20
2008-07-22 06:46:18 C 19 11 27.77 +05 00 36.9 r H45
2008-07-22 06:47:26 C 19 11 27.75 +05 00 34.4 r H45
2008-07-22 06:48:48 C 19 11 27.73 +05 00 31.3 r H45
2008-07-22 06:50:23 C 19 11 27.72 +05 00 27.8 r H45
2008-07-22 06:52:48 C 19 11 27.70 +05 00 22.4 r H45
2008-07-22 22:53:56 C 19 11 22.74 +04 24 17.3 r B19
2008-07-22 22:56:13 C 19 11 22.71 +04 24 12.1 r B19
2008-07-22 22:57:54 C 19 11 22.71 +04 24 08.3 r B19
2008-07-23 02:45:48 C 19 11 22.22 +04 15 39.4 r H53
2008-07-23 02:49:00 C 19 11 22.20 +04 15 32.1 r H53
2008-07-23 02:50:02 C 19 11 22.18 +04 15 29.8 r H53
2008-07-23 02:51:07 C 19 11 22.16 +04 15 27.7 r H53
2008-07-23 02:52:18 C 19 11 22.15 +04 15 24.8 r H53
2008-07-23 02:53:36 C 19 11 22.14 +04 15 22.1 r H53