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
2008-07-24 03:30:55 C 19 11 15.19 +03 20 46.5 r H53
2008-07-24 03:32:26 C 19 11 15.17 +03 20 43.3 r H53
2008-07-24 03:33:43 C 19 11 15.16 +03 20 37.5 r H53
2008-07-24 03:34:53 C 19 11 15.17 +03 20 36.4 r H53
2008-07-24 03:36:15 C 19 11 15.18 +03 20 35.1 r H53
2008-07-24 03:37:28 C 19 11 15.17 +03 20 34.0 r H53
2008-07-25 22:17:01 C 19 11 06.71 +01 48 00.0 16.2 r C20
2008-07-25 22:21:41 C 19 11 06.65 +01 47 49.9 15.3 r C20
2008-07-27 15:13:28 C 19 11 04.95 +00 21 56.4 r 379
2008-07-27 15:20:08 C 19 11 04.90 +00 21 42.5 r 379
2008-07-27 15:25:29 C 19 11 04.89 +00 21 31.8 r 379
2008-07-27 15:34:49 C 19 11 04.85 +00 21 12.2 r 379
2008-07-27 15:37:28 C 19 11 04.85 +00 21 06.8 r 379
2008-07-27 21:47:23 C 19 11 05.88 +00 08 20.9 c B70
2008-07-28 03:52:39 C 19 11 06.21 -00 04 08.8 r H53
2008-07-28 03:55:00 C 19 11 06.20 -00 04 13.7 r H53
2008-07-28 03:56:48 C 19 11 06.20 -00 04 17.4 r H53
2008-07-28 03:59:12 C 19 11 06.19 -00 04 22.2 r H53
2008-07-28 04:01:13 C 19 11 06.17 -00 04 26.4 r H53
2008-07-28 04:03:20 C 19 11 06.18 -00 04 30.8 r H53
2008-07-28 21:03:25 C 19 11 07.89 -00 39 07.5 c B70
2008-07-29 03:12:33 C 19 11 08.65 -00 51 30.7 r H53
2008-07-29 03:13:58 C 19 11 08.65 -00 51 33.7 r H53
2008-07-29 03:15:11 C 19 11 08.65 -00 51 36.0 r H53
2008-07-29 03:16:23 C 19 11 08.65 -00 51 38.4 r H53
2008-07-29 03:17:39 C 19 11 08.65 -00 51 41.1 r H53
2008-07-29 03:18:57 C 19 11 08.63 -00 51 43.6 r H53
2008-07-29 05:12:54 C 19 11 08.61 -00 55 30.6 16.2 c 704
2008-07-29 05:28:30 C 19 11 08.67 -00 56 02.0 17.1 c 704
2008-07-29 05:44:41 C 19 11 08.62 -00 56 34.8 16.7 c 704
2008-07-29 06:00:28 C 19 11 08.50 -00 57 06.4 16.6 c 704
2008-07-29 06:16:06 C 19 11 08.55 -00 57 37.7 16.3 c 704
2008-07-31 23:50:57 C 19 11 25.04 -03 05 25.9 c B37
2008-07-31 23:52:51 C 19 11 25.04 -03 05 29.5 c B37
2008-07-31 23:54:18 C 19 11 25.05 -03 05 32.5 c B37
2008-07-31 23:57:10 C 19 11 25.06 -03 05 37.6 c B37
2008-08-01 07:58:13 C 19 11 27.63 -03 20 41.8 r H53
2008-08-01 07:59:48 C 19 11 27.65 -03 20 44.5 r H53
2008-08-01 08:02:05 C 19 11 27.67 -03 20 49.0 r H53
2008-08-01 08:04:09 C 19 11 27.68 -03 20 53.1 r H53
2008-08-01 08:05:48 C 19 11 27.63 -03 20 56.2 r H53
2008-08-01 08:07:29 C 19 11 27.67 -03 20 59.2 r H53
2008-08-01 21:58:53 C 19 11 34.58 -03 46 50.1 r J59
2008-08-01 22:05:33 C 19 11 34.61 -03 47 02.4 r J59
2008-08-01 22:11:55 C 19 11 34.69 -03 47 13.8 r J59
2008-08-02 05:07:22 C 19 11 37.73 -03 59 57.4 16.2 c 704
2008-08-02 05:09:15 C 19 11 37.43 -04 00 01.6 r H53
2008-08-02 05:10:58 C 19 11 37.45 -04 00 05.0 r H53
2008-08-02 05:12:37 C 19 11 37.46 -04 00 07.8 r H53
2008-08-02 05:14:08 C 19 11 37.46 -04 00 10.8 r H53