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
2020-10-10 15:04:12 C 04 04 51.789 -02 06 39.97 U F51
2020-10-14 08:55:27 C 04 02 33.67 -02 45 09.8 U I41
2020-10-14 08:57:28 C 04 02 33.59 -02 45 10.8 U I41
2020-10-14 09:54:12 C 04 02 31.90 -02 45 34.9 U I41
2020-10-14 11:49:01 C 04 02 28.49 -02 46 24.1 U I41
2020-10-14 12:02:29 C 04 02 28.319 -02 46 28.71 U F52
2020-10-14 12:20:10 C 04 02 27.786 -02 46 36.43 U F52
2020-10-14 12:37:50 C 04 02 27.263 -02 46 43.85 U F52
2020-10-15 09:47:26 C 04 01 50.28 -02 55 48.4 U I41
2020-10-15 09:53:30 C 04 01 50.07 -02 55 51.0 U I41
2020-10-17 07:23:07 C 04 00 25.51 -03 15 15.0 U I41
2020-10-17 08:39:32 C 04 00 22.94 -03 15 47.4 U I41
2020-10-17 09:07:33 C 04 00 22.01 -03 15 59.5 U I41
2020-10-17 09:20:25 C 04 00 21.55 -03 16 04.6 V G96
2020-10-17 09:27:49 C 04 00 21.30 -03 16 07.6 V G96
2020-10-17 09:35:12 C 04 00 21.05 -03 16 10.8 V G96
2020-10-17 09:42:35 C 04 00 20.80 -03 16 14.1 V G96
2020-10-21 08:28:14 C 03 57 01.47 -03 56 05.7 U I41
2020-10-21 08:29:35 C 03 57 01.40 -03 56 06.3 U I41
2020-10-21 09:00:18 C 03 57 00.24 -03 56 19.2 U I41
2020-10-22 10:27:43 C 03 56 01.82 -04 06 48.6 V T08
2020-10-22 10:34:23 C 03 56 01.55 -04 06 50.6 V T08
2020-10-22 10:39:02 C 03 56 01.37 -04 06 54.0 V T08
2020-10-22 10:52:22 C 03 56 00.80 -04 06 58.4 V T08
2020-10-23 08:52:27 C 03 55 08.57 -04 16 00.8 U I41
2020-10-23 08:54:29 C 03 55 08.49 -04 16 01.7 U I41
2020-10-23 09:39:31 C 03 55 06.63 -04 16 20.1 U I41
2020-10-23 09:46:56 C 03 55 06.33 -04 16 23.1 U I41
2020-10-24 13:08:36 C 03 53 59.225 -04 27 26.52 U F51
2020-10-24 13:26:27 C 03 53 58.460 -04 27 33.66 U F51
2020-10-24 13:44:19 C 03 53 57.690 -04 27 40.76 U F51
2020-10-27 08:38:56 C 03 51 04.94 -04 54 08.2 U I41
2020-10-27 09:06:20 C 03 51 03.68 -04 54 19.0 U I41
2020-10-29 07:44:11 C 03 48 56.14 -05 12 05.8 U I41
2020-10-29 08:14:28 C 03 48 54.73 -05 12 16.7 U I41
2020-10-29 08:17:09 C 03 48 54.56 -05 12 18.1 U I41
2020-11-09 10:11:45 C 03 35 19.498 -06 39 44.11 U F52
2020-11-09 10:27:40 C 03 35 18.605 -06 39 48.66 U F52
2020-11-09 10:43:35 C 03 35 17.711 -06 39 53.07 U F52
2020-11-09 10:59:31 C 03 35 16.807 -06 39 57.43 U F52
2020-11-11 07:14:33 C 03 32 51.15 -06 51 39.3 V 703
2020-11-11 07:22:06 C 03 32 50.84 -06 51 41.6 V 703
2020-11-11 07:29:40 C 03 32 50.40 -06 51 42.4 V 703
2020-11-11 07:34:19 C 03 32 50.14 -06 51 44.1 U I41
2020-11-11 07:37:13 C 03 32 49.98 -06 51 44.9 V 703
2020-11-11 08:08:45 C 03 32 48.20 -06 51 52.9 U I41
2020-11-15 06:06:32 C 03 27 35.16 -07 13 22.1 U I41
2020-11-15 07:52:44 C 03 27 29.08 -07 13 43.8 U I41
2020-11-16 07:08:38 C 03 26 11.28 -07 18 18.2 U I41
2020-11-16 07:09:59 C 03 26 11.20 -07 18 18.4 U I41