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
2017-07-10 05:33:30 C 17 01 47.77 +21 41 53.8 u H21
2017-07-10 05:35:34 C 17 01 47.93 +21 41 47.7 u H21
2017-07-10 05:39:17 C 17 01 48.23 +21 41 36.8 u H21
2017-07-12 04:00:32 C 17 05 43.86 +19 27 28.4 u H21
2017-07-12 04:02:29 C 17 05 44.01 +19 27 22.9 u H21
2017-07-12 04:04:27 C 17 05 44.16 +19 27 17.2 u H21
2017-07-12 04:06:24 C 17 05 44.31 +19 27 11.7 u H21
2017-07-12 04:08:22 C 17 05 44.46 +19 27 06.0 u H21
2017-07-12 04:10:19 C 17 05 44.61 +19 27 00.3 u H21
2017-07-12 04:12:17 C 17 05 44.76 +19 26 54.7 u H21
2017-07-12 04:14:15 C 17 05 44.91 +19 26 49.1 u H21
2017-07-12 04:16:12 C 17 05 45.07 +19 26 43.4 u H21
2017-07-12 04:18:10 C 17 05 45.22 +19 26 37.7 u H21
2017-07-12 08:59:26 C 17 06 08.61 +19 13 18.2 L T05
2017-07-12 09:24:49 C 17 06 10.53 +19 12 05.2 L T05
2017-07-12 09:28:42 C 17 06 10.82 +19 11 54.0 L T05
2017-07-12 09:54:19 C 17 06 12.79 +19 10 40.1 L T05
2017-07-14 01:53:26 C 17 09 31.63 +17 17 02.7 r Y00
2017-07-14 01:55:21 C 17 09 31.75 +17 16 56.3 r Y00
2017-07-14 01:57:11 C 17 09 31.82 +17 16 50.1 r Y00
2017-07-14 20:55:07 C 17 11 05.66 +16 22 58.3 q 160
2017-07-14 20:57:11 C 17 11 05.81 +16 22 52.4 q 160
2017-07-14 20:59:15 C 17 11 05.97 +16 22 46.6 q 160
2017-07-16 03:02:51 C 17 13 32.17 +14 59 01.2 q I15
2017-07-16 03:05:03 C 17 13 32.34 +14 58 55.2 q I15
2017-07-16 03:07:14 C 17 13 32.50 +14 58 49.1 q I15
2017-07-16 21:49:49 C 17 15 02.88 +14 07 16.7 q 160
2017-07-16 21:51:52 C 17 15 03.03 +14 07 10.9 q 160
2017-07-16 21:53:56 C 17 15 03.19 +14 07 05.4 q 160
2017-07-16 22:03:53 C 17 15 04.09 +14 06 39.5 15.9 q 006
2017-07-16 22:07:23 C 17 15 04.36 +14 06 29.5 15.6 q 006
2017-07-16 22:11:28 C 17 15 04.64 +14 06 18.6 15.8 q 006
2017-07-16 22:16:08 C 17 15 05.01 +14 06 05.7 15.8 q 006
2017-07-16 22:19:38 C 17 15 05.27 +14 05 55.7 15.7 q 006
2017-07-17 20:43:42 C 17 16 53.24 +13 04 53.2 u K83
2017-07-17 20:46:06 C 17 16 53.44 +13 04 46.4 u K83
2017-07-17 20:48:34 C 17 16 53.65 +13 04 39.7 u K83
2017-07-17 20:51:23 C 17 16 53.83 +13 04 32.9 u K83
2017-07-17 21:16:05 C 17 16 55.64 +13 03 26.3 q 160
2017-07-17 21:16:27 C 17 16 55.86 +13 03 26.1 16.0 q 006
2017-07-17 21:17:09 C 17 16 55.72 +13 03 23.5 q 160
2017-07-17 21:18:11 C 17 16 55.81 +13 03 20.6 q 160
2017-07-17 21:19:57 C 17 16 56.11 +13 03 16.8 15.1 q 006
2017-07-17 21:23:27 C 17 16 56.38 +13 03 07.2 15.4 q 006
2017-07-17 21:26:57 C 17 16 56.64 +13 02 57.7 15.5 q 006
2017-07-17 21:31:37 C 17 16 56.98 +13 02 45.2 15.8 q 006
2017-07-18 02:31:56 C 17 17 20.98 +12 49 12.2 U W71
2017-07-18 02:33:25 C 17 17 21.07 +12 49 08.3 U W71
2017-07-18 02:35:04 C 17 17 21.17 +12 49 03.8 U W71
2017-07-18 02:36:38 C 17 17 21.28 +12 48 59.7 U W71