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
2008-08-05 22:51:25 C 19 12 33.41 -06 37 31.5 15.2 r 084
2008-08-06 20:06:19 C 19 12 51.49 -07 12 38.0 o 639
2008-08-06 20:13:30 C 19 12 51.57 -07 12 49.5 o 639
2008-08-06 20:19:20 C 19 12 51.65 -07 12 59.2 o 639
2008-08-06 20:24:50 C 19 12 51.66 -07 13 08.3 o 639
2008-08-06 21:48:39 C 19 12 52.42 -07 15 26.2 16.5 r 084
2008-08-08 03:44:42 C 19 13 20.22 -08 03 21.5 r H53
2008-08-08 03:46:07 C 19 13 20.23 -08 03 23.8 r H53
2008-08-08 03:47:27 C 19 13 20.25 -08 03 25.8 r H53
2008-08-08 03:48:45 C 19 13 20.27 -08 03 27.8 r H53
2008-08-08 03:50:02 C 19 13 20.30 -08 03 30.0 r H53
2008-08-08 03:52:38 C 19 13 20.31 -08 03 33.7 r H53
2008-08-09 03:27:19 C 19 13 44.21 -08 40 12.3 r H53
2008-08-09 03:28:48 C 19 13 44.25 -08 40 14.5 r H53
2008-08-09 03:37:18 C 19 13 44.37 -08 40 27.7 r H53
2008-08-09 03:38:55 C 19 13 44.39 -08 40 30.2 r H53
2008-08-09 03:41:24 C 19 13 44.41 -08 40 34.0 r H53
2008-08-09 03:42:52 C 19 13 44.45 -08 40 36.1 r H53
2008-08-10 01:48:59 C 19 14 08.57 -09 13 41.4 r 808
2008-08-10 02:03:40 C 19 14 08.86 -09 14 03.4 r 808
2008-08-10 02:15:30 C 19 14 09.02 -09 14 21.0 r 808
2008-08-10 03:39:07 C 19 14 10.58 -09 16 46.0 r H53
2008-08-10 03:40:23 C 19 14 10.63 -09 16 47.2 r H53
2008-08-10 03:41:56 C 19 14 10.66 -09 16 49.9 r H53
2008-08-10 03:44:44 C 19 14 10.59 -09 16 54.9 r H53
2008-08-10 03:47:22 C 19 14 10.69 -09 16 58.1 r H53
2008-08-10 03:48:42 C 19 14 10.75 -09 17 00.1 r H53
2008-08-11 03:11:22 C 19 14 38.29 -09 51 18.8 r H53
2008-08-11 03:12:57 C 19 14 38.29 -09 51 21.0 r H53
2008-08-11 03:23:58 C 19 14 38.60 -09 51 37.7 r H53
2008-08-11 03:25:16 C 19 14 38.62 -09 51 38.1 r H53
2008-08-11 03:26:39 C 19 14 38.63 -09 51 38.7 r H53
2008-08-12 02:08:30 C 19 15 06.89 -10 23 44.0 r 808
2008-08-12 02:17:59 C 19 15 07.12 -10 23 57.3 r 808
2008-08-12 02:28:00 C 19 15 07.31 -10 24 12.0 r 808
2008-08-13 02:39:00 C 19 15 39.46 -10 57 41.7 r 808
2008-08-13 02:48:59 C 19 15 39.63 -10 57 54.9 r 808
2008-08-13 02:56:30 C 19 15 39.80 -10 58 05.8 r 808
2008-08-17 04:37:25 C 19 18 09.06 -13 03 33.7 r H53
2008-08-17 04:38:49 C 19 18 09.08 -13 03 34.6 r H53
2008-08-17 04:40:17 C 19 18 09.13 -13 03 36.7 r H53
2008-08-17 04:41:47 C 19 18 09.14 -13 03 38.9 r H53
2008-08-17 04:43:18 C 19 18 09.23 -13 03 39.8 r H53
2008-08-17 04:44:38 C 19 18 09.24 -13 03 42.3 r H53
2008-08-20 01:59:12 C 19 20 13.68 -14 23 03.4 r H53
2008-08-20 02:00:54 C 19 20 13.71 -14 23 05.5 r H53
2008-08-20 02:02:19 C 19 20 13.82 -14 23 07.1 r H53
2008-08-20 02:03:49 C 19 20 13.82 -14 23 08.3 r H53
2008-08-20 02:05:20 C 19 20 13.86 -14 23 09.7 r H53
2008-08-20 02:08:57 C 19 20 14.02 -14 23 14.2 r H53