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
2017-04-12 03:05:02 C 09 45 06.38 +61 17 26.8 u H21
2017-04-12 03:07:11 C 09 45 06.65 +61 17 29.4 u H21
2017-04-12 20:22:29 C 09 47 39.10 +61 39 30.9 q Z52
2017-04-12 20:46:31 C 09 47 42.43 +61 40 01.3 q Z52
2017-04-12 21:13:16 C 09 47 46.13 +61 40 34.9 q Z52
2017-04-13 07:27:50 C 09 49 18.75 +61 53 43.9 L T08
2017-04-13 07:51:25 C 09 49 21.94 +61 54 12.8 L T08
2017-04-13 08:16:22 C 09 49 25.35 +61 54 43.0 L T08
2017-04-13 08:22:05 C 09 49 26.12 +61 54 50.1 L T08
2017-04-14 03:51:25 C 09 52 28.84 +62 18 45.0 u H21
2017-04-14 03:53:29 C 09 52 29.15 +62 18 47.6 u H21
2017-04-14 03:55:33 C 09 52 29.46 +62 18 49.7 u H21
2017-04-14 03:57:37 C 09 52 29.74 +62 18 52.3 u H21
2017-04-14 03:59:40 C 09 52 30.05 +62 18 54.6 u H21
2017-04-14 04:01:43 C 09 52 30.34 +62 18 57.0 u H21
2017-04-14 04:03:46 C 09 52 30.65 +62 18 59.4 u H21
2017-04-14 04:05:49 C 09 52 30.95 +62 19 01.8 u H21
2017-04-14 04:07:46 C 09 52 31.23 +62 19 04.1 u H21
2017-04-14 04:09:48 C 09 52 31.54 +62 19 06.8 u H21
2017-04-14 13:02:50 C 09 53 58.16 +62 29 58.2 q D29
2017-04-14 13:28:55 C 09 54 01.98 +62 30 29.0 q D29
2017-04-14 13:55:00 C 09 54 05.83 +62 30 59.6 q D29
2017-04-16 06:22:00 C 10 00 54.51 +63 18 15.9 q 703
2017-04-16 06:29:45 C 10 00 55.78 +63 18 24.3 q 703
2017-04-16 06:37:25 C 10 00 57.03 +63 18 32.6 q 703
2017-04-16 06:40:51 C 10 01 00.24 +63 18 47.4 L T08
2017-04-16 06:45:07 C 10 00 58.29 +63 18 40.7 q 703
2017-04-16 07:04:25 C 10 01 03.95 +63 19 14.0 L T08
2017-04-16 07:27:08 C 10 01 07.54 +63 19 39.8 L T08
2017-04-16 07:49:32 C 10 01 11.06 +63 20 04.5 L T08
2017-04-17 06:41:55 C 10 05 18.84 +63 45 35.9 L T08
2017-04-17 07:04:53 C 10 05 22.64 +63 46 00.9 L T08
2017-04-17 07:26:54 C 10 05 26.28 +63 46 24.5 L T08
2017-04-17 07:46:22 C 10 05 29.48 +63 46 45.7 L T08
2017-04-17 21:26:01 C 10 08 02.35 +64 01 20.0 16.1 q Z43
2017-04-17 22:06:00 C 10 08 09.41 +64 02 01.6 16.0 q Z43
2017-04-17 22:41:56 C 10 08 15.77 +64 02 38.4 16.6 q Z43
2017-04-19 08:39:40 C 10 14 51.72 +64 38 07.7 L T05
2017-04-19 09:08:28 C 10 14 57.01 +64 38 34.9 L T05
2017-04-19 09:31:44 C 10 15 01.38 +64 38 57.0 L T05
2017-04-19 09:33:49 C 10 15 01.73 +64 38 58.8 L T05
2017-04-19 09:36:38 C 10 15 02.26 +64 39 01.8 L T05
2017-04-19 09:38:44 C 10 15 02.67 +64 39 03.7 L T05
2017-04-19 09:59:32 C 10 15 06.59 +64 39 22.8 L T05
2017-04-19 10:07:11 C 10 15 07.96 +64 39 30.3 L T05
2017-04-20 10:44:06 C 10 20 10.08 +65 03 39.9 L T08
2017-04-20 11:06:49 C 10 20 14.64 +65 03 59.1 L T08
2017-04-20 11:28:17 C 10 20 18.96 +65 04 17.9 L T08
2017-04-20 11:48:36 C 10 20 23.13 +65 04 35.2 L T08
2017-04-20 21:24:16 C 10 22 28.19 +65 13 45.7 16.0 U Z52