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
2017-04-05 21:18:42 C 09 26 52.53 +57 46 20.6 17.6 q Z43
2017-04-05 21:49:55 C 09 26 55.36 +57 47 07.9 17.3 q Z43
2017-04-05 22:57:04 S 09 27 03.91 +57 48 42.3 L C51
2017-04-06 02:05:34 S 09 27 23.04 +57 53 28.5 L C51
2017-04-06 05:14:15 S 09 27 42.31 +57 58 13.4 L C51
2017-04-06 08:22:45 S 09 28 01.76 +58 02 57.8 L C51
2017-04-06 09:57:10 S 09 28 11.54 +58 05 19.4 L C51
2017-04-06 13:05:40 S 09 28 31.24 +58 10 02.2 L C51
2017-04-06 14:39:56 S 09 28 41.16 +58 12 23.4 L C51
2017-04-06 14:40:06 S 09 28 41.17 +58 12 23.2 L C51
2017-04-06 16:14:22 S 09 28 51.11 +58 14 44.1 L C51
2017-04-06 17:48:37 S 09 29 01.09 +58 17 04.8 L C51
2017-04-06 19:22:52 S 09 29 11.10 +58 19 25.3 L C51
2017-04-06 20:57:18 S 09 29 21.21 +58 21 45.4 L C51
2017-04-06 22:31:33 S 09 29 31.32 +58 24 05.4 L C51
2017-04-07 01:40:03 S 09 29 51.65 +58 28 44.9 L C51
2017-04-07 04:48:44 S 09 30 12.16 +58 33 23.2 L C51
2017-04-07 08:05:50 C 09 30 31.60 +58 38 33.6 L T05
2017-04-07 08:31:55 C 09 30 34.10 +58 39 10.9 L T05
2017-04-07 08:48:05 C 09 30 35.66 +58 39 33.8 L T05
2017-04-07 09:12:04 C 09 30 37.98 +58 40 07.6 L T05
2017-04-07 09:21:08 C 09 30 38.85 +58 40 20.4 L T05
2017-04-07 20:00:06 C 09 31 52.90 +58 55 42.4 q Z52
2017-04-07 20:20:44 C 09 31 55.02 +58 56 12.5 q Z52
2017-04-07 20:42:03 C 09 31 57.23 +58 56 43.4 q Z52
2017-04-07 21:02:00 C 09 31 59.30 +58 57 12.2 q Z52
2017-04-07 21:04:01 C 09 31 59.29 +58 57 20.5 q 006
2017-04-07 21:10:16 C 09 31 59.91 +58 57 29.5 q 006
2017-04-07 21:16:31 C 09 32 00.55 +58 57 38.6 q 006
2017-04-07 21:22:45 C 09 32 01.16 +58 57 47.2 q 006
2017-04-07 21:29:00 C 09 32 01.82 +58 57 56.2 q 006
2017-04-07 22:12:05 C 09 32 06.53 +58 58 54.6 q Z43
2017-04-07 22:42:48 C 09 32 09.76 +58 59 37.9 16.9 q Z43
2017-04-07 23:13:36 C 09 32 12.97 +59 00 21.2 17.3 q Z43
2017-04-07 23:35:07 C 09 32 15.27 +59 00 50.9 16.4 q Z43
2017-04-08 01:11:03 C 09 32 28.99 +59 03 18.9 u H21
2017-04-08 01:13:01 C 09 32 29.16 +59 03 21.6 u H21
2017-04-08 01:14:58 C 09 32 29.36 +59 03 24.4 u H21
2017-04-08 01:16:56 C 09 32 29.57 +59 03 27.2 u H21
2017-04-08 01:18:54 C 09 32 29.78 +59 03 30.2 u H21
2017-04-08 01:20:51 C 09 32 29.97 +59 03 32.9 u H21
2017-04-08 01:22:49 C 09 32 30.19 +59 03 35.9 u H21
2017-04-08 01:24:46 C 09 32 30.35 +59 03 38.6 u H21
2017-04-08 01:26:44 C 09 32 30.58 +59 03 41.6 u H21
2017-04-08 01:28:42 C 09 32 30.78 +59 03 44.5 u H21
2017-04-08 01:30:39 C 09 32 30.99 +59 03 47.2 u H21
2017-04-08 01:32:37 C 09 32 31.19 +59 03 50.1 u H21
2017-04-08 01:34:28 C 09 32 31.33 +59 03 53.0 u H21
2017-04-08 06:21:33 C 09 33 01.35 +59 10 39.3 q H45
2017-04-08 06:22:58 C 09 33 01.50 +59 10 41.3 q H45