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
2017-07-06 02:25:08 C 16 53 07.94 +26 32 48.6 U W71
2017-07-06 09:22:24 C 16 53 44.64 +26 12 30.3 L T08
2017-07-06 09:37:10 C 16 53 45.84 +26 11 46.4 L T08
2017-07-06 10:02:34 C 16 53 47.90 +26 10 31.1 L T08
2017-07-06 10:03:17 C 16 53 47.96 +26 10 29.1 L T08
2017-07-06 20:49:53 C 16 54 46.70 +25 38 32.9 q 160
2017-07-06 20:52:17 C 16 54 46.90 +25 38 25.9 q 160
2017-07-06 20:54:41 C 16 54 47.10 +25 38 18.9 q 160
2017-07-07 01:48:38 C 16 55 13.46 +25 23 51.9 U W71
2017-07-07 01:51:10 C 16 55 13.68 +25 23 44.7 U W71
2017-07-07 01:53:17 C 16 55 13.86 +25 23 38.5 U W71
2017-07-07 01:55:13 C 16 55 14.02 +25 23 32.8 U W71
2017-07-07 02:16:40 C 16 55 16.20 +25 22 31.6 u H21
2017-07-07 02:19:11 C 16 55 16.40 +25 22 24.3 u H21
2017-07-07 02:21:42 C 16 55 16.61 +25 22 16.9 u H21
2017-07-07 02:24:13 C 16 55 16.81 +25 22 09.6 u H21
2017-07-07 02:26:44 C 16 55 17.02 +25 22 02.1 u H21
2017-07-07 02:29:15 C 16 55 17.23 +25 21 54.7 u H21
2017-07-07 02:31:47 C 16 55 17.44 +25 21 47.3 u H21
2017-07-07 02:34:18 C 16 55 17.65 +25 21 39.9 u H21
2017-07-07 02:36:49 C 16 55 17.85 +25 21 32.6 u H21
2017-07-07 02:39:20 C 16 55 18.06 +25 21 25.2 u H21
2017-07-07 02:41:51 C 16 55 18.27 +25 21 17.7 u H21
2017-07-07 02:44:22 C 16 55 18.47 +25 21 10.4 u H21
2017-07-07 02:46:54 C 16 55 18.68 +25 21 03.0 u H21
2017-07-07 02:49:25 C 16 55 18.88 +25 20 55.6 u H21
2017-07-07 02:51:56 C 16 55 19.09 +25 20 48.3 u H21
2017-07-07 02:54:27 C 16 55 19.29 +25 20 40.9 u H21
2017-07-07 02:57:43 C 16 55 19.56 +25 20 31.3 u H21
2017-07-08 21:39:30 C 16 59 04.43 +23 15 10.2 o Z22
2017-07-08 21:41:10 C 16 59 04.55 +23 15 05.7 o Z22
2017-07-08 21:43:06 C 16 59 04.68 +23 14 59.6 o Z22
2017-07-08 22:26:19 C 16 59 08.14 +23 12 53.4 o Z22
2017-07-08 22:30:39 C 16 59 08.47 +23 12 40.6 o Z22
2017-07-08 22:35:04 C 16 59 08.78 +23 12 28.3 o Z22
2017-07-10 01:03:25 C 17 01 26.00 +21 54 59.8 q I15
2017-07-10 01:05:16 C 17 01 26.15 +21 54 54.0 q I15
2017-07-10 01:07:07 C 17 01 26.28 +21 54 48.5 q I15
2017-07-10 05:08:30 C 17 01 45.78 +21 43 06.9 u H21
2017-07-10 05:10:35 C 17 01 45.94 +21 43 00.9 u H21
2017-07-10 05:12:39 C 17 01 46.12 +21 42 54.9 u H21
2017-07-10 05:14:55 C 17 01 46.29 +21 42 48.1 u H21
2017-07-10 05:16:59 C 17 01 46.45 +21 42 42.0 u H21
2017-07-10 05:19:03 C 17 01 46.61 +21 42 36.1 u H21
2017-07-10 05:21:07 C 17 01 46.78 +21 42 29.9 u H21
2017-07-10 05:23:11 C 17 01 46.94 +21 42 23.9 u H21
2017-07-10 05:25:15 C 17 01 47.11 +21 42 17.9 u H21
2017-07-10 05:27:19 C 17 01 47.28 +21 42 11.9 u H21
2017-07-10 05:29:23 C 17 01 47.44 +21 42 05.7 u H21
2017-07-10 05:31:27 C 17 01 47.60 +21 41 59.7 u H21