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
2024-08-03 01:22:58 C 00 28 46.524 -03 38 53.20 V M22
2024-08-03 01:32:47 C 00 28 46.418 -03 38 58.85 V M22
2024-08-03 01:40:39 C 00 28 46.390 -03 39 03.31 V M22
2024-08-03 13:28:34 C 00 28 42.177 -03 46 22.05 X F52
2024-08-03 13:43:45 C 00 28 42.044 -03 46 31.32 X F52
2024-08-03 13:58:53 C 00 28 41.911 -03 46 40.58 X F52
2024-08-03 14:14:01 C 00 28 41.779 -03 46 49.84 X F52
2024-08-04 12:01:21 C 00 28 32.597 -04 00 17.96 V T08
2024-08-04 12:16:06 C 00 28 32.494 -04 00 27.14 V T08
2024-08-04 12:50:43 C 00 28 32.071 -04 00 48.56 V T08
2024-08-04 12:57:45 C 00 28 32.009 -04 00 51.88 V T08
2024-08-06 11:18:27 C 00 28 04.798 -04 30 25.52 V T05
2024-08-06 11:21:48 C 00 28 04.726 -04 30 27.86 V T05
2024-08-06 11:28:33 C 00 28 04.646 -04 30 32.22 V T05
2024-08-06 11:43:06 C 00 28 04.447 -04 30 41.76 V T05
2024-08-08 13:17:35 C 00 27 24.127 -05 03 34.85 V T08
2024-08-08 13:50:48 C 00 27 23.537 -05 03 57.06 V T08
2024-08-08 13:54:56 C 00 27 23.460 -05 03 59.98 V T08
2024-08-08 14:26:53 C 00 27 22.908 -05 04 21.50 V T08
2024-08-10 14:04:28 C 00 26 33.900 -05 37 09.34 V T05
2024-08-10 14:09:01 C 00 26 33.768 -05 37 12.04 V T05
2024-08-10 14:28:01 C 00 26 33.389 -05 37 25.57 V T05
2024-08-10 15:04:36 C 00 26 32.623 -05 37 51.53 V T05
2024-08-12 13:27:53 C 00 25 35.244 -06 10 50.27 V T08
2024-08-12 13:35:49 C 00 25 35.057 -06 10 55.63 V T08
2024-08-12 13:36:10 C 00 25 35.047 -06 10 56.21 X F52
2024-08-12 13:40:10 C 00 25 34.970 -06 10 59.02 V T08
2024-08-12 13:51:31 C 00 25 34.666 -06 11 07.27 X F52
2024-08-12 14:06:50 C 00 25 34.287 -06 11 18.28 X F52
2024-08-12 14:22:06 C 00 25 33.905 -06 11 29.32 X F52
2024-08-12 14:26:47 C 00 25 33.794 -06 11 32.46 V T08
2024-08-13 06:45:01 C 00 25 11.501 -06 23 14.10 V W68
2024-08-13 06:47:37 C 00 25 11.482 -06 23 16.37 V W68
2024-08-13 06:52:12 C 00 25 11.314 -06 23 19.97 V W68
2024-08-13 07:18:12 C 00 25 10.646 -06 23 38.80 V W68
2024-08-14 13:52:07 C 00 24 25.154 -06 46 13.51 V T05
2024-08-14 14:43:05 C 00 24 23.750 -06 46 51.31 V T05
2024-08-14 14:55:35 C 00 24 23.340 -06 47 00.71 V T05
2024-08-14 15:09:15 C 00 24 22.994 -06 47 09.71 V T05
2024-08-15 01:51:28 C 00 24 06.271 -06 55 00.34 V M22
2024-08-15 02:42:23 C 00 24 04.819 -06 55 38.10 V M22
2024-08-15 02:46:56 C 00 24 04.663 -06 55 41.70 V M22
2024-08-15 03:09:08 C 00 24 04.058 -06 55 58.15 V M22
2024-08-16 12:09:03 C 00 23 09.115 -07 20 54.17 V T08
2024-08-16 12:13:26 C 00 23 08.952 -07 20 57.41 V T08
2024-08-16 12:18:05 C 00 23 08.806 -07 21 00.79 V T08
2024-08-16 12:40:07 C 00 23 08.112 -07 21 17.75 V T08
2024-08-16 22:45:05 C 00 22 50.592 -07 28 48.68 V M22
2024-08-16 22:48:58 C 00 22 50.436 -07 28 51.64 V M22
2024-08-16 22:55:28 C 00 22 50.249 -07 28 56.93 V M22