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
2017-02-03 04:16:32 C 09 36 06.54 +06 55 51.2 V G45
2017-02-03 05:10:05 C 09 36 05.04 +06 57 01.5 V G45
2017-02-03 06:15:13 C 09 36 03.20 +06 58 26.5 V G45
2017-02-03 07:10:37 C 09 36 01.58 +06 59 39.2 V G45
2017-02-03 08:01:53 C 09 36 00.06 +07 00 46.4 V G45
2017-02-03 08:56:07 C 09 35 58.46 +07 01 57.3 V G45
2017-02-03 10:50:17 C 09 35 55.14 +07 04 26.6 V G45
2017-02-03 11:39:15 C 09 35 53.79 +07 05 30.8 V G45
2017-02-03 12:17:47 C 09 35 52.73 +07 06 21.3 V G45
2017-02-03 12:49:15 C 09 35 51.91 +07 07 02.6 V G45
2017-02-04 07:41:18 C 09 35 24.48 +07 32 25.2 V G45
2017-02-04 08:33:53 C 09 35 22.85 +07 33 36.8 V G45
2017-02-04 09:28:39 C 09 35 21.15 +07 34 51.7 V G45
2017-02-04 10:31:12 C 09 35 19.25 +07 36 17.1 V G45
2017-02-04 11:18:57 C 09 35 17.83 +07 37 22.5 V G45
2017-02-04 12:02:27 C 09 35 16.58 +07 38 22.1 V G45
2017-02-04 12:03:34 C 09 35 17.30 +07 38 29.0 L T05
2017-02-04 12:29:55 C 09 35 16.46 +07 39 05.2 L T05
2017-02-04 12:36:14 C 09 35 15.66 +07 39 08.0 V G45
2017-02-04 12:44:13 C 09 35 16.01 +07 39 24.9 L T05
2017-02-04 13:03:51 C 09 35 14.94 +07 39 45.7 V G45
2017-02-04 13:17:11 C 09 35 14.98 +07 40 10.1 L T05
2017-02-04 13:21:22 C 09 35 14.84 +07 40 15.9 L T05
2017-02-05 16:25:04 C 09 34 32.04 +08 18 24.0 q D29
2017-02-05 16:46:42 C 09 34 31.33 +08 18 55.3 q D29
2017-02-05 17:08:20 C 09 34 30.61 +08 19 26.5 q D29
2017-02-06 09:40:00 C 09 34 02.31 +08 43 39.9 q G96
2017-02-06 09:46:01 C 09 34 02.11 +08 43 48.8 q G96
2017-02-06 09:52:04 C 09 34 01.91 +08 43 57.7 q G96
2017-02-06 09:58:05 C 09 34 01.71 +08 44 06.6 q G96
2017-02-08 11:53:13 C 09 32 32.37 +10 01 22.9 L T08
2017-02-08 12:25:48 C 09 32 31.14 +10 02 15.1 L T08
2017-02-08 12:41:10 C 09 32 30.59 +10 02 39.7 L T08
2017-02-08 13:05:50 C 09 32 29.67 +10 03 18.9 L T08
2017-02-10 05:01:07 C 09 31 13.75 +11 09 22.6 u H21
2017-02-10 05:04:23 C 09 31 13.63 +11 09 28.0 u H21
2017-02-10 05:06:39 C 09 31 13.54 +11 09 32.0 u H21
2017-02-10 05:09:10 C 09 31 13.44 +11 09 36.2 u H21
2017-02-10 05:11:42 C 09 31 13.35 +11 09 40.7 u H21
2017-02-10 05:14:13 C 09 31 13.25 +11 09 44.9 u H21
2017-02-10 05:16:44 C 09 31 13.15 +11 09 49.1 u H21
2017-02-10 05:19:15 C 09 31 13.05 +11 09 53.6 u H21
2017-02-10 05:21:46 C 09 31 12.95 +11 09 57.9 u H21
2017-02-10 05:24:18 C 09 31 12.86 +11 10 02.0 u H21
2017-02-10 05:26:49 C 09 31 12.77 +11 10 06.4 u H21
2017-02-10 05:29:20 C 09 31 12.67 +11 10 10.7 u H21
2017-02-10 05:31:51 C 09 31 12.57 +11 10 15.0 u H21
2017-02-10 05:34:22 C 09 31 12.47 +11 10 19.2 u H21
2017-02-10 05:36:53 C 09 31 12.37 +11 10 23.6 u H21
2017-02-10 05:39:24 C 09 31 12.28 +11 10 27.8 u H21