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
2024-09-06 23:32:39 C 00 00 32.815 -14 04 55.42 V M22
2024-09-06 23:37:19 C 00 00 32.568 -14 04 58.66 V M22
2024-09-07 00:28:01 C 00 00 29.686 -14 05 36.74 V M22
2024-09-07 01:08:40 C 00 00 27.408 -14 06 06.95 V M22
2024-09-07 21:18:32 C 23 59 21.917 -14 21 00.47 V M22
2024-09-07 21:51:44 C 23 59 20.038 -14 21 24.98 V M22
2024-09-07 22:17:54 C 23 59 18.509 -14 21 44.71 V M22
2024-09-07 22:22:45 C 23 59 18.250 -14 21 48.13 V M22
2024-09-08 08:06:44 C 23 58 46.132 -14 29 04.63 V 703
2024-09-08 08:10:00 C 23 58 45.941 -14 29 06.61 V 703
2024-09-08 08:13:16 C 23 58 45.714 -14 29 09.24 V 703
2024-09-08 08:16:31 C 23 58 45.563 -14 29 11.33 V 703
2024-09-09 04:56:17 C 23 57 37.373 -14 44 00.10 V W68
2024-09-09 05:00:16 C 23 57 37.200 -14 44 02.90 V W68
2024-09-09 05:03:06 C 23 57 36.982 -14 44 04.49 V W68
2024-09-09 05:09:26 C 23 57 36.607 -14 44 09.31 V W68
2024-09-09 05:12:19 C 23 57 36.446 -14 44 11.76 V W68
2024-09-09 05:19:37 C 23 57 36.019 -14 44 16.62 V W68
2024-09-09 09:24:09 C 23 57 22.810 -14 47 19.64 X F51
2024-09-09 09:37:53 C 23 57 22.017 -14 47 29.55 X F51
2024-09-09 09:51:21 C 23 57 21.241 -14 47 39.29 X F51
2024-09-09 10:04:34 C 23 57 20.479 -14 47 48.76 X F51
2024-09-10 07:29:37 C 23 56 09.330 -15 03 03.20 V 703
2024-09-10 07:32:55 C 23 56 09.114 -15 03 05.33 V 703
2024-09-10 07:36:14 C 23 56 08.927 -15 03 07.74 V 703
2024-09-10 07:39:33 C 23 56 08.722 -15 03 10.48 V 703
2024-09-12 07:13:22 C 23 53 30.246 -15 36 04.00 V 703
2024-09-12 07:16:38 C 23 53 30.091 -15 36 06.34 V 703
2024-09-12 07:19:54 C 23 53 29.900 -15 36 08.32 V 703
2024-09-12 07:23:09 C 23 53 29.706 -15 36 10.84 V 703
2024-09-12 21:31:27 C 23 52 42.574 -15 45 41.51 V 088
2024-09-12 21:33:03 C 23 52 42.514 -15 45 42.26 V 088
2024-09-12 21:34:41 C 23 52 42.394 -15 45 43.42 V 088
2024-09-12 21:36:18 C 23 52 42.276 -15 45 44.71 V 088
2024-09-13 22:14:20 C 23 51 20.162 -16 01 54.05 V M22
2024-09-13 22:16:58 C 23 51 20.011 -16 01 55.52 V M22
2024-09-13 22:20:57 C 23 51 19.754 -16 01 57.83 V M22
2024-09-13 22:28:48 C 23 51 19.346 -16 02 03.41 V M22
2024-09-14 22:18:14 C 23 50 00.014 -16 17 35.38 V 088
2024-09-14 22:19:50 C 23 49 59.933 -16 17 36.35 V 088
2024-09-14 22:21:26 C 23 49 59.839 -16 17 37.25 V 088
2024-09-20 04:41:32 C 23 43 06.725 -17 32 33.68 V W68
2024-09-20 04:46:18 C 23 43 06.451 -17 32 36.82 V W68
2024-09-20 05:13:05 C 23 43 05.064 -17 32 50.46 V W68
2024-09-20 05:20:26 C 23 43 04.639 -17 32 54.17 V W68
2024-09-22 22:03:15 C 23 39 41.234 -18 06 48.60 V M22
2024-09-22 22:17:50 C 23 39 40.440 -18 06 56.12 V M22
2024-09-22 22:22:24 C 23 39 40.178 -18 06 58.39 V M22
2024-09-22 22:26:23 C 23 39 39.974 -18 07 00.01 V M22
2024-09-22 22:30:24 C 23 39 39.787 -18 07 01.27 V M22