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
2019-01-07 09:39:05 C 04 41 10.76 -00 26 02.3 V T05
2019-01-07 09:51:42 C 04 41 10.11 -00 25 57.6 V T05
2019-01-13 08:18:27 C 04 35 16.90 +00 29 18.1 V T08
2019-01-13 08:30:18 C 04 35 16.49 +00 29 24.1 V T08
2019-01-13 08:42:21 C 04 35 16.02 +00 29 28.2 V T08
2019-01-13 08:54:23 C 04 35 15.53 +00 29 34.0 V T08
2019-01-15 03:58:52 C 04 33 45.44 +00 47 49.8 V 703
2019-01-15 04:05:58 C 04 33 45.21 +00 47 52.9 V 703
2019-01-15 04:13:03 C 04 33 44.97 +00 47 55.6 V 703
2019-01-15 04:20:09 C 04 33 44.70 +00 47 59.0 V 703
2019-01-20 08:16:53 C 04 30 10.083 +01 44 01.95 U F51
2019-01-20 08:35:08 C 04 30 09.598 +01 44 10.50 U F51
2019-01-20 08:53:27 C 04 30 09.122 +01 44 19.04 U F51
2019-01-20 09:11:46 C 04 30 08.656 +01 44 27.76 U F51
2019-01-23 08:09:48 C 04 28 36.82 +02 18 28.4 V T05
2019-01-23 08:21:09 C 04 28 36.63 +02 18 33.6 V T05
2019-01-23 08:32:57 C 04 28 36.36 +02 18 39.0 V T05
2019-01-23 08:44:52 C 04 28 36.08 +02 18 46.0 V T05
2019-01-27 07:51:13 C 04 27 08.537 +03 06 06.33 U F51
2019-01-27 07:52:09 C 04 27 08.525 +03 06 06.77 U F51
2019-01-27 08:09:31 C 04 27 08.292 +03 06 15.56 U F51
2019-01-27 08:10:27 C 04 27 08.275 +03 06 16.04 U F51
2019-01-27 08:27:30 C 04 27 08.046 +03 06 24.70 U F51
2019-01-27 08:28:26 C 04 27 08.033 +03 06 25.11 U F51
2019-01-27 08:45:30 C 04 27 07.805 +03 06 33.79 U F51
2019-01-27 08:46:26 C 04 27 07.796 +03 06 34.23 U F51
2019-03-01 04:03:25 C 04 39 26.54 +10 09 06.9 V 703
2019-03-01 04:11:34 C 04 39 26.86 +10 09 10.4 V 703
2019-03-01 04:27:52 C 04 39 27.48 +10 09 19.6 V 703
2019-03-07 20:33:13 C 04 46 37.28 +11 33 51.5 V C95
2019-03-07 20:36:31 C 04 46 37.48 +11 33 53.4 V C95
2019-03-07 20:40:08 C 04 46 37.73 +11 33 54.7 V C95
2019-03-07 20:43:27 C 04 46 37.80 +11 33 56.1 V C95
2020-08-29 11:26:53 C 04 00 10.66 +03 46 37.4 V G96
2020-08-29 11:35:06 C 04 00 10.88 +03 46 35.0 V G96
2020-08-29 11:43:17 C 04 00 11.13 +03 46 33.2 V G96
2020-08-29 11:51:29 C 04 00 11.35 +03 46 31.1 V G96
2020-09-13 14:14:08 C 04 07 46.293 +02 04 29.47 U F52
2020-09-13 14:25:15 C 04 07 46.411 +02 04 26.17 U F52
2020-09-13 14:36:24 C 04 07 46.552 +02 04 22.37 U F52
2020-09-13 14:47:32 C 04 07 46.686 +02 04 18.68 U F52
2020-10-01 14:01:19 C 04 08 28.360 -00 35 34.32 U F52
2020-10-01 14:17:09 C 04 08 28.153 -00 35 41.30 U F52
2020-10-01 14:32:59 C 04 08 27.973 -00 35 47.78 U F52
2020-10-08 12:03:44 C 04 05 57.67 -01 44 56.4 V G96
2020-10-08 12:09:52 C 04 05 57.52 -01 44 58.9 V G96
2020-10-08 12:16:00 C 04 05 57.41 -01 45 01.9 V G96
2020-10-08 12:22:07 C 04 05 57.27 -01 45 04.0 V G96
2020-10-10 14:43:10 C 04 04 52.296 -02 06 31.08 U F51
2020-10-10 14:53:39 C 04 04 52.038 -02 06 35.48 U F51