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
2008-03-20 23:06:36 C 13 36 22.35 +52 50 55.7 c J32
2008-03-20 23:15:48 C 13 36 24.79 +52 51 21.3 c J32
2008-03-20 23:23:34 C 13 36 26.89 +52 51 43.0 c J32
2008-03-20 23:33:50 C 13 36 29.62 +52 52 11.8 c J32
2008-03-21 08:45:10 C 13 39 01.05 +53 17 03.6 r H45
2008-03-21 08:47:03 C 13 39 01.56 +53 17 08.3 r H45
2008-03-21 08:48:27 C 13 39 01.93 +53 17 12.1 r H45
2008-03-21 08:51:13 C 13 39 02.67 +53 17 19.4 r H45
2008-03-21 08:54:47 C 13 39 03.63 +53 17 28.8 r H45
2008-03-23 21:11:08 C 13 56 52.95 +55 48 40.9 o A92
2008-03-23 21:22:43 C 13 56 56.25 +55 49 11.8 o A92
2008-03-23 21:43:55 C 13 57 02.51 +55 50 03.1 o A92
2008-03-25 00:52:14 C 14 05 27.57 +56 51 38.8 o 084
2008-03-25 00:54:26 C 14 05 28.21 +56 51 43.5 o 084
2008-03-28 02:33:44 C 14 29 41.67 +59 17 58.2 o 084
2008-03-28 02:35:57 C 14 29 42.46 +59 18 02.1 o 084
2008-04-04 03:58:29 C 15 29 53.90 +62 55 52.3 P 716
2008-04-04 04:49:16 C 15 30 11.96 +62 56 39.7 P 716
2008-04-04 05:42:10 C 15 30 30.51 +62 57 28.3 P 716
2008-04-04 06:36:50 C 15 30 49.62 +62 58 17.7 P 716
2008-04-04 07:38:55 C 15 31 10.98 +62 59 12.1 P 716
2008-04-06 01:00:33 C 15 45 58.31 +63 27 59.5 c B19
2008-04-06 01:03:22 C 15 45 59.23 +63 28 01.3 c B19
2008-04-06 01:06:29 C 15 46 00.32 +63 28 03.4 c B19
2008-04-07 21:13:47 C 16 01 32.55 +63 49 19.0 c 127
2008-04-07 21:19:03 C 16 01 34.36 +63 49 21.3 c 127
2008-04-07 21:24:46 C 16 01 36.33 +63 49 24.3 c 127
2008-04-07 21:29:53 C 16 01 38.10 +63 49 26.5 c 127
2008-04-14 07:03:43 C 16 51 28.93 +64 02 59.3 P 716
2008-04-14 07:53:54 C 16 51 43.20 +64 02 54.1 P 716
2008-04-14 08:41:28 C 16 51 56.63 +64 02 48.1 P 716
2008-04-14 09:21:18 C 16 52 07.78 +64 02 42.4 P 716
2008-04-14 10:12:56 C 16 52 22.10 +64 02 33.8 P 716
2008-04-15 03:59:12 C 16 57 39.42 +63 58 21.4 P 716
2008-04-15 04:41:07 C 16 57 51.58 +63 58 16.5 P 716
2008-04-15 05:33:12 C 16 58 06.49 +63 58 09.5 P 716
2008-04-15 06:17:13 C 16 58 18.91 +63 58 04.2 P 716
2008-04-15 07:09:28 C 16 58 33.41 +63 57 55.3 P 716
2008-04-15 15:47:04 C 17 01 01.74 +63 55 48.7 m 379
2008-04-15 15:50:16 C 17 01 02.57 +63 55 48.2 m 379
2008-04-15 15:58:51 C 17 01 04.83 +63 55 46.3 m 379
2008-04-15 16:13:50 C 17 01 08.97 +63 55 43.5 m 379
2008-04-15 16:17:03 C 17 01 09.78 +63 55 42.8 m 379
2008-04-15 16:28:51 C 17 01 12.92 +63 55 40.4 m 379
2008-04-15 16:32:04 C 17 01 13.79 +63 55 39.7 m 379
2008-04-17 08:32:48 C 17 12 20.22 +63 42 52.8 15.6 c 704
2008-04-17 08:48:49 C 17 12 24.27 +63 42 47.4 15.7 c 704
2008-04-17 09:04:37 C 17 12 28.23 +63 42 42.2 15.8 c 704
2008-04-17 09:20:48 C 17 12 32.29 +63 42 37.1 15.7 c 704
2008-04-17 09:36:21 C 17 12 36.19 +63 42 32.0 15.9 c 704