159399 (1998 UL1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2139509061 ± 8.61e-09
Semi-major axis (a)1.5269676489 AU ± 5.31e-10
Inclination (i)41.96806947° ± 8.25e-07
Long. of Asc. Node (Ω)214.84517905° ± 4.95e-07
Arg. of Perihelion (ω)353.26133400° ± 1.29e-06
Mean Anomaly (M)298.21637405° ± 1.38e-06
Mean Motion (n)0.5223571242°/day ± 2.72e-10
Perihelion dist (q)1.20027154 AU ± 1.32e-08
Aphelion dist (Q)1.85366376 AU ± 1.32e-08
Orbital Period1.88688205 yr ± 9.84e-10
Physical Parameters
H (abs. magnitude)16.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.058″
Uncertainty0
Orbit TypeAmor
MOID0.195291 AU
Observations Used1813
Gaia Obs Used59
Oppositions9
Arc Total1998-2017
First Observation Used1998-09-28
Last Observation Used2024-12-09
Observations (1949)
Date Type RA Dec Mag Band Observatory
2024-04-27 23:02:56 C 10 51 56.693 -17 58 49.51 V M22
2024-04-27 23:17:28 C 10 51 58.824 -17 57 18.54 V M22
2024-04-28 06:11:24 C 10 53 01.932 -17 14 59.96 V 703
2024-04-28 06:17:54 C 10 53 02.785 -17 14 19.32 V 703
2024-04-28 06:21:09 C 10 53 03.311 -17 13 59.63 V 703
2024-04-28 21:09:35 C 10 55 16.985 -15 41 24.79 V M22
2024-04-28 21:14:12 C 10 55 17.642 -15 40 56.03 V M22
2024-04-28 21:22:05 C 10 55 18.775 -15 40 06.85 V M22
2024-04-28 21:37:22 C 10 55 20.959 -15 38 31.78 V M22
2024-04-29 19:24:29 C 10 58 37.35 -13 24 18.8 X G02
2024-04-29 19:29:47 C 10 58 38.10 -13 23 45.9 X G02
2024-04-29 19:34:47 C 10 58 38.81 -13 23 14.9 X G02
2024-04-30 01:37:34 C 10 59 32.95 -12 45 54.8 V W46
2024-04-30 02:00:57 C 10 59 36.24 -12 43 31.1 V W46
2024-04-30 02:09:44 C 10 59 37.49 -12 42 37.0 V W46
2024-04-30 06:12:34 C 11 00 12.640 -12 17 41.68 V 703
2024-04-30 06:15:49 C 11 00 13.093 -12 17 21.62 V 703
2024-04-30 06:19:04 C 11 00 13.561 -12 17 01.64 V 703
2024-04-30 06:22:19 C 11 00 14.018 -12 16 41.63 V 703
2024-04-30 18:16:48 C 11 02 00.891 -11 03 51.42 V 089
2024-04-30 18:19:40 C 11 02 01.331 -11 03 34.36 V 089
2024-04-30 18:31:08 C 11 02 02.932 -11 02 24.47 V 089
2024-04-30 18:34:00 C 11 02 03.358 -11 02 06.77 V 089
2024-04-30 18:36:52 C 11 02 03.753 -11 01 49.82 V 089
2024-04-30 18:39:44 C 11 02 04.159 -11 01 31.48 V 089
2024-04-30 19:32:39 C 11 02 12.00 -10 56 09.8 X G02
2024-04-30 19:40:46 C 11 02 13.12 -10 55 19.9 X G02
2024-04-30 19:48:35 C 11 02 14.23 -10 54 32.3 X G02
2024-04-30 20:13:26 C 11 02 17.64 -10 52 00.4 M32
2024-04-30 20:13:43 C 11 02 17.70 -10 51 58.9 M32
2024-04-30 20:15:24 C 11 02 17.95 -10 51 48.5 M32
2024-04-30 20:17:39 C 11 02 18.26 -10 51 34.7 M32
2024-04-30 20:19:37 C 11 02 18.53 -10 51 22.9 M32
2024-04-30 20:19:54 C 11 02 18.57 -10 51 21.1 M32
2024-04-30 20:21:35 C 11 02 18.82 -10 51 10.9 M32
2024-05-01 06:24:19 C 11 03 48.388 -09 49 55.73 X F52
2024-05-01 07:00:28 C 11 03 53.401 -09 46 16.33 X F52
2024-05-01 07:18:32 C 11 03 55.882 -09 44 28.07 X F52
2024-05-01 07:23:41 C 11 03 56.597 -09 43 56.07 X F52
2024-05-01 07:40:41 C 11 03 58.966 -09 42 12.54 X F52
2024-05-01 07:57:43 C 11 04 01.296 -09 40 30.75 X F52
2024-05-01 08:14:49 C 11 04 03.699 -09 38 45.71 X F52
2024-05-02 05:22:09 C 11 07 09.718 -07 32 02.72 V U68
2024-05-02 05:27:49 C 11 07 10.499 -07 31 28.78 V U68
2024-05-02 05:52:56 C 11 07 13.980 -07 28 59.09 V U68
2024-05-02 05:58:38 C 11 07 14.774 -07 28 25.38 V U68
2024-05-02 08:20:21 C 11 07 35.196 -07 14 14.86 V T05
2024-05-02 08:24:55 C 11 07 35.820 -07 13 47.75 V T05
2024-05-02 08:32:44 C 11 07 36.900 -07 13 01.27 V T05
2024-05-02 08:56:19 C 11 07 40.157 -07 10 40.98 V T05