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
2017-05-07 03:20:32 C 12 08 58.00 +68 36 14.1 u H21
2017-05-07 03:22:36 C 12 08 58.61 +68 36 14.1 u H21
2017-05-07 03:24:40 C 12 08 59.26 +68 36 14.1 u H21
2017-05-07 03:26:44 C 12 08 59.84 +68 36 14.3 u H21
2017-05-07 03:28:59 C 12 09 00.53 +68 36 14.3 u H21
2017-05-07 21:29:50 C 12 14 45.42 +68 36 25.8 q Z43
2017-05-07 22:03:21 C 12 14 55.71 +68 36 24.5 16.3 q Z43
2017-05-07 22:34:02 C 12 15 04.97 +68 36 23.7 16.5 q Z43
2017-05-07 23:14:43 C 12 15 17.42 +68 36 21.5 16.8 q Z43
2017-05-08 01:49:21 C 12 16 09.92 +68 36 23.3 u H21
2017-05-08 01:51:19 C 12 16 10.56 +68 36 23.7 u H21
2017-05-08 01:53:16 C 12 16 11.12 +68 36 23.7 u H21
2017-05-08 01:55:14 C 12 16 11.73 +68 36 23.7 u H21
2017-05-08 01:57:12 C 12 16 12.32 +68 36 23.8 u H21
2017-05-08 01:59:09 C 12 16 12.91 +68 36 23.6 u H21
2017-05-08 02:01:07 C 12 16 13.50 +68 36 23.6 u H21
2017-05-08 02:03:05 C 12 16 14.09 +68 36 23.6 u H21
2017-05-08 02:05:02 C 12 16 14.67 +68 36 23.8 u H21
2017-05-08 02:07:00 C 12 16 15.28 +68 36 23.6 u H21
2017-05-08 02:08:57 C 12 16 15.87 +68 36 23.8 u H21
2017-05-08 02:10:55 C 12 16 16.48 +68 36 23.9 u H21
2017-05-08 02:12:53 C 12 16 17.05 +68 36 23.8 u H21
2017-05-08 02:14:50 C 12 16 17.65 +68 36 23.7 u H21
2017-05-08 02:16:48 C 12 16 18.25 +68 36 23.6 u H21
2017-05-08 02:19:09 C 12 16 19.00 +68 36 23.8 u H21
2017-05-08 22:31:09 C 12 22 45.69 +68 35 14.5 q Z80
2017-05-08 22:34:23 C 12 22 46.64 +68 35 14.0 q Z80
2017-05-08 22:37:36 C 12 22 47.63 +68 35 13.7 q Z80
2017-05-08 22:41:00 C 12 22 48.71 +68 35 13.4 q Z80
2017-05-09 21:10:43 C 12 30 04.04 +68 32 42.3 U Z52
2017-05-09 21:30:01 C 12 30 09.96 +68 32 39.5 U Z52
2017-05-09 21:43:11 C 12 30 13.99 +68 32 37.5 U Z52
2017-05-09 21:56:18 C 12 30 18.05 +68 32 35.5 U Z52
2017-05-09 22:09:28 C 12 30 22.11 +68 32 33.4 U Z52
2017-05-09 22:22:36 C 12 30 26.16 +68 32 31.3 U Z52
2017-05-09 22:35:52 C 12 30 30.25 +68 32 29.0 U Z52
2017-05-09 22:48:59 C 12 30 34.31 +68 32 26.8 U Z52
2017-05-10 21:02:18 C 12 37 45.00 +68 28 28.3 U Z52
2017-05-10 21:25:40 C 12 37 52.19 +68 28 23.5 U Z52
2017-05-10 21:45:37 C 12 37 58.35 +68 28 19.1 U Z52
2017-05-10 22:05:00 C 12 38 04.33 +68 28 14.8 U Z52
2017-05-10 22:23:57 C 12 38 10.18 +68 28 10.5 U Z52
2017-05-10 22:48:20 C 12 38 17.68 +68 28 04.8 U Z52
2017-05-10 23:07:28 C 12 38 23.60 +68 28 00.0 U Z52
2017-05-10 23:26:20 C 12 38 29.43 +68 27 55.4 U Z52
2017-05-10 23:45:32 C 12 38 35.38 +68 27 50.4 U Z52
2017-05-11 00:04:39 C 12 38 41.29 +68 27 45.3 U Z52
2017-05-11 00:24:14 C 12 38 47.43 +68 27 40.1 U Z52
2017-05-12 22:52:01 C 12 53 42.99 +68 14 26.0 q Z80
2017-05-12 22:54:08 C 12 53 43.60 +68 14 24.8 q Z80