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
2026-01-07 20:32:35 C 08 45 23.448 +00 37 38.39 V M22
2026-01-07 21:08:22 C 08 45 22.483 +00 37 49.33 V M22
2026-01-07 21:29:55 C 08 45 21.878 +00 37 55.56 V M22
2026-01-09 04:36:16 B 08 44 31.971 +00 47 29.47 W W27
2026-01-09 04:38:19 B 08 44 31.911 +00 47 30.08 W W27
2026-01-09 04:40:22 B 08 44 31.850 +00 47 31.07 W W27
2026-01-09 04:44:29 B 08 44 31.732 +00 47 32.40 W W27
2026-01-09 04:46:32 B 08 44 31.661 +00 47 33.09 W W27
2026-01-09 11:16:02 C 08 44 20.544 +00 49 48.78 X F51
2026-01-09 11:34:13 C 08 44 19.960 +00 49 55.00 X F51
2026-01-09 11:52:30 C 08 44 19.373 +00 50 01.23 X F51
2026-01-09 12:10:43 C 08 44 18.785 +00 50 07.47 X F51
2026-01-10 23:00:58 C 08 43 16.450 +01 03 00.40 V M22
2026-01-10 23:04:53 C 08 43 16.320 +01 03 01.91 V M22
2026-01-10 23:10:04 C 08 43 16.133 +01 03 03.71 V M22
2026-01-10 23:17:56 C 08 43 15.866 +01 03 06.77 V M22
2026-01-12 05:30:55 B 08 42 16.679 +01 15 03.54 W W27
2026-01-12 05:32:26 B 08 42 16.650 +01 15 04.06 W W27
2026-01-12 05:33:58 B 08 42 16.590 +01 15 04.96 W W27
2026-01-12 05:35:29 B 08 42 16.519 +01 15 05.13 W W27
2026-01-12 12:25:01 C 08 42 02.251 +01 18 05.47 V T08
2026-01-12 12:29:39 C 08 42 02.076 +01 18 07.31 V T08
2026-01-12 12:38:12 C 08 42 01.745 +01 18 11.02 V T08
2026-01-12 13:00:34 C 08 42 00.888 +01 18 20.56 V T08