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
2017-06-26 21:01:32 C 16 31 42.56 +37 17 16.2 15.7 q 006
2017-06-26 21:04:54 C 16 31 42.87 +37 17 06.3 15.7 q 006
2017-06-27 01:41:40 C 16 32 12.03 +37 04 03.2 q I15
2017-06-27 01:43:52 C 16 32 12.24 +37 03 57.0 q I15
2017-06-27 01:46:05 C 16 32 12.45 +37 03 50.8 q I15
2017-06-28 02:40:38 C 16 34 47.15 +35 52 58.0 q W19
2017-06-28 02:53:53 C 16 34 48.41 +35 52 20.2 q W19
2017-06-28 03:07:12 C 16 34 49.66 +35 51 42.3 q W19
2017-06-30 00:30:23 C 16 39 22.72 +33 41 06.7 o Z22
2017-06-30 00:37:09 C 16 39 24.32 +33 41 08.9 r Y00
2017-06-30 00:38:45 C 16 39 24.55 +33 41 03.8 r Y00
2017-06-30 00:40:13 C 16 39 24.66 +33 41 00.0 r Y00
2017-06-30 00:43:52 C 16 39 23.97 +33 40 26.7 o Z22
2017-06-30 00:56:01 C 16 39 25.06 +33 39 51.1 o Z22
2017-07-01 02:24:32 C 16 41 55.96 +32 25 37.4 U W71
2017-07-01 02:27:08 C 16 41 56.20 +32 25 30.1 U W71
2017-07-01 02:29:07 C 16 41 56.37 +32 25 24.3 U W71
2017-07-01 02:31:13 C 16 41 56.57 +32 25 18.1 U W71
2017-07-01 06:13:59 C 16 42 17.59 +32 14 35.3 q 703
2017-07-01 06:21:48 C 16 42 18.27 +32 14 12.3 q 703
2017-07-01 06:29:34 C 16 42 18.95 +32 13 49.6 q 703
2017-07-01 06:37:20 C 16 42 19.64 +32 13 26.8 q 703
2017-07-02 09:46:46 C 16 44 55.76 +30 54 03.1 L T08
2017-07-02 10:03:11 C 16 44 57.17 +30 53 14.6 L T08
2017-07-02 10:05:19 C 16 44 57.35 +30 53 08.3 L T08
2017-07-02 10:06:02 C 16 44 57.42 +30 53 06.1 L T08
2017-07-02 20:50:58 C 16 45 59.93 +30 21 23.4 c J19
2017-07-02 20:57:06 C 16 46 00.46 +30 21 05.7 c J19
2017-07-02 21:03:14 C 16 46 01.00 +30 20 47.2 c J19
2017-07-02 21:15:31 C 16 46 02.06 +30 20 11.6 c J19
2017-07-02 21:21:38 C 16 46 02.59 +30 19 53.6 c J19
2017-07-02 21:27:48 C 16 46 03.13 +30 19 35.4 c J19
2017-07-02 21:33:55 C 16 46 03.67 +30 19 17.4 c J19
2017-07-03 21:32:20 C 16 48 17.86 +29 08 43.9 q 160
2017-07-03 21:34:22 C 16 48 18.04 +29 08 37.8 q 160
2017-07-03 21:36:14 C 16 48 18.20 +29 08 32.4 q 160
2017-07-04 01:24:14 C 16 48 39.22 +28 57 50.2 r Y00
2017-07-04 01:26:23 C 16 48 39.36 +28 57 42.9 r Y00
2017-07-04 01:27:49 C 16 48 39.52 +28 57 39.2 r Y00
2017-07-04 21:56:37 n 16 50 32.94 +27 56 45.9 q Z43
2017-07-04 22:01:24 C 16 50 32.98 +27 56 33.7 q 160
2017-07-04 22:03:22 C 16 50 33.14 +27 56 27.8 q 160
2017-07-04 22:05:20 C 16 50 33.31 +27 56 22.0 q 160
2017-07-04 22:26:46 n 16 50 35.50 +27 55 16.8 q Z43
2017-07-04 23:08:28 n 16 50 39.07 +27 53 13.6 q Z43
2017-07-05 21:38:50 C 16 52 41.80 +26 46 53.3 q 160
2017-07-05 21:40:45 C 16 52 41.97 +26 46 47.8 q 160
2017-07-05 21:42:40 C 16 52 42.09 +26 46 42.0 q 160
2017-07-06 02:17:50 C 16 53 07.33 +26 33 10.2 U W71
2017-07-06 02:22:37 C 16 53 07.69 +26 32 56.1 U W71