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
2008-08-02 05:15:43 C 19 11 37.46 -04 00 13.7 r H53
2008-08-02 05:17:21 C 19 11 37.46 -04 00 16.6 r H53
2008-08-02 05:23:29 C 19 11 37.82 -04 00 28.5 16.9 c 704
2008-08-02 05:39:33 C 19 11 37.82 -04 00 56.7 16.5 c 704
2008-08-02 05:55:42 C 19 11 37.87 -04 01 26.2 16.5 c 704
2008-08-02 06:11:50 C 19 11 37.95 -04 01 56.0 16.5 c 704
2008-08-03 03:02:48 C 19 11 49.09 -04 39 48.7 r H53
2008-08-03 03:04:07 C 19 11 49.11 -04 39 51.3 r H53
2008-08-03 03:05:20 C 19 11 49.11 -04 39 53.3 r H53
2008-08-03 03:06:42 C 19 11 49.12 -04 39 55.8 r H53
2008-08-03 03:08:12 C 19 11 49.12 -04 39 58.4 r H53
2008-08-03 03:09:43 C 19 11 49.12 -04 40 01.1 r H53
2008-08-03 22:50:19 C 19 12 00.43 -05 14 58.9 r J51
2008-08-03 22:58:05 C 19 12 00.48 -05 15 12.7 r J51
2008-08-03 23:05:52 C 19 12 00.52 -05 15 26.5 r J51
2008-08-04 00:28:35 C 19 12 00.87 -05 17 56.5 c J93
2008-08-04 00:34:42 C 19 12 00.91 -05 18 07.5 c J93
2008-08-04 00:40:46 C 19 12 00.88 -05 18 18.8 c J93
2008-08-04 02:24:52 C 19 12 02.94 -05 21 18.5 r H53
2008-08-04 02:26:33 C 19 12 02.95 -05 21 21.4 r H53
2008-08-04 02:27:55 C 19 12 02.96 -05 21 24.1 r H53
2008-08-04 02:29:21 C 19 12 02.97 -05 21 26.7 r H53
2008-08-04 02:30:54 C 19 12 02.99 -05 21 29.1 r H53
2008-08-04 02:32:31 C 19 12 02.99 -05 21 32.0 r H53
2008-08-04 23:38:45 C 19 12 16.45 -05 58 06.7 r J51
2008-08-04 23:44:57 C 19 12 16.53 -05 58 17.1 r J51
2008-08-04 23:51:11 C 19 12 16.61 -05 58 27.5 r J51
2008-08-05 04:09:58 C 19 12 19.78 -06 05 52.8 r H53
2008-08-05 04:11:25 C 19 12 19.79 -06 05 55.4 r H53
2008-08-05 04:12:52 C 19 12 19.81 -06 05 57.9 r H53
2008-08-05 04:14:31 C 19 12 19.82 -06 06 00.7 r H53
2008-08-05 04:17:01 C 19 12 19.82 -06 06 04.8 r H53
2008-08-05 04:18:22 C 19 12 19.84 -06 06 07.1 r H53
2008-08-05 19:45:49 C 19 12 31.80 -06 32 18.2 o A78
2008-08-05 19:47:46 C 19 12 31.80 -06 32 20.9 o A78
2008-08-05 19:50:55 C 19 12 31.85 -06 32 27.4 o 151
2008-08-05 19:52:11 C 19 12 31.87 -06 32 29.5 o 151
2008-08-05 19:53:26 C 19 12 31.88 -06 32 31.7 o 151
2008-08-05 19:53:31 C 19 12 31.86 -06 32 30.9 o A78
2008-08-05 19:54:42 C 19 12 31.90 -06 32 33.8 o 151
2008-08-05 19:55:58 C 19 12 31.91 -06 32 35.8 o 151
2008-08-05 19:57:01 C 19 12 31.90 -06 32 36.7 o A78
2008-08-05 19:57:14 C 19 12 31.92 -06 32 38.0 o 151
2008-08-05 19:58:30 C 19 12 31.92 -06 32 40.1 o 151
2008-08-05 21:10:11 C 19 12 32.60 -06 34 40.8 r 185
2008-08-05 21:11:37 C 19 12 32.63 -06 34 43.0 r 185
2008-08-05 21:12:23 C 19 12 32.66 -06 34 44.3 r 185
2008-08-05 21:13:11 C 19 12 32.67 -06 34 45.7 r 185
2008-08-05 21:14:03 C 19 12 32.64 -06 34 47.1 r 185
2008-08-05 22:48:12 C 19 12 33.34 -06 37 26.7 16.5 r 084