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
2024-01-03 13:10:08 C 14 52 36.858 -09 15 17.17 V 703
2024-01-13 13:08:59 C 15 37 43.277 -10 28 33.46 V 703
2024-01-13 13:18:48 C 15 37 45.170 -10 28 32.30 V 703
2024-01-31 15:18:57 C 17 00 34.366 -11 27 07.24 V T05
2024-01-31 15:26:21 C 17 00 35.796 -11 27 07.24 V T05
2024-01-31 15:44:39 C 17 00 39.233 -11 27 07.81 V T05
2024-01-31 15:56:04 C 17 00 41.354 -11 27 09.00 V T05
2024-02-04 15:26:09 C 17 18 40.646 -11 26 48.52 V T05
2024-02-04 15:48:59 C 17 18 44.844 -11 26 48.52 V T05
2024-02-04 15:56:35 C 17 18 46.205 -11 26 49.31 V T05
2024-02-04 16:05:49 C 17 18 48.041 -11 26 46.72 V T05
2024-04-04 03:19:25 C 21 06 23.174 -05 18 53.86 V M22
2024-04-04 03:37:28 C 21 06 25.510 -05 18 47.66 V M22
2024-04-04 03:49:26 C 21 06 26.998 -05 18 42.70 V M22
2024-07-05 13:50:45 C 00 16 27.478 +00 55 55.85 V T05
2024-07-05 13:54:50 C 00 16 27.583 +00 55 54.05 V T05
2024-07-05 14:06:38 C 00 16 28.049 +00 55 52.36 V T05
2024-07-05 14:38:13 C 00 16 29.244 +00 55 44.90 V T05
2024-07-09 13:22:41 C 00 19 56.897 +00 33 41.72 V T05
2024-07-09 13:27:53 C 00 19 57.098 +00 33 39.78 V T05
2024-07-09 13:39:09 C 00 19 57.442 +00 33 36.90 V T05
2024-07-09 13:55:46 C 00 19 58.042 +00 33 32.69 V T05
2024-07-11 14:24:29 C 00 21 32.023 +00 20 20.15 V T08
2024-07-11 14:32:38 C 00 21 32.203 +00 20 18.28 V T08
2024-07-11 14:40:03 C 00 21 32.482 +00 20 16.30 V T08
2024-07-11 14:48:13 C 00 21 32.674 +00 20 13.70 V T08
2024-07-12 05:45:24 C 00 22 00.341 +00 15 59.90 V W68
2024-07-12 05:48:41 C 00 22 00.408 +00 15 58.14 V W68
2024-07-12 05:51:17 C 00 22 00.528 +00 15 58.07 V W68
2024-07-12 05:53:54 C 00 22 00.590 +00 15 56.56 V W68
2024-07-12 05:55:16 C 00 22 00.605 +00 15 56.59 V W68
2024-07-12 06:00:31 C 00 22 00.751 +00 15 54.61 V W68
2024-07-12 06:15:44 C 00 22 01.195 +00 15 50.51 V W68
2024-07-12 06:17:02 C 00 22 01.255 +00 15 50.00 V W68
2024-07-16 07:32:08 C 00 24 38.712 -00 15 32.65 V W68
2024-07-16 07:36:40 C 00 24 38.825 -00 15 34.09 V W68
2024-07-16 07:42:38 C 00 24 38.995 -00 15 36.07 V W68
2024-07-16 07:50:25 C 00 24 39.170 -00 15 39.31 V W68
2024-07-27 13:25:13 C 00 28 44.083 -02 11 52.94 V T08
2024-07-27 13:28:33 C 00 28 44.114 -02 11 54.56 V T08
2024-07-27 14:13:36 C 00 28 44.254 -02 12 18.97 V T08
2024-07-27 14:17:50 C 00 28 44.268 -02 12 20.59 V T08
2024-07-28 05:45:04 C 00 28 49.481 -02 20 12.91 V W68
2024-07-28 06:19:36 C 00 28 49.639 -02 20 30.98 V W68
2024-07-28 07:00:43 C 00 28 49.752 -02 20 52.22 V W68
2024-07-28 07:19:25 C 00 28 49.771 -02 21 02.63 V W68
2024-07-30 13:08:20 C 00 28 58.487 -02 50 09.36 X F51
2024-07-30 13:24:29 C 00 28 58.468 -02 50 18.27 X F51
2024-07-30 13:40:38 C 00 28 58.444 -02 50 27.35 X F51
2024-08-03 01:20:20 C 00 28 46.546 -03 38 51.54 V M22