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
2017-10-27 11:02:09 C 03 01 21.19 +08 24 55.3 T08
2017-10-27 11:07:03 C 03 01 20.87 +08 24 46.9 T08
2017-10-27 11:07:42 C 03 01 20.85 +08 24 46.4 T08
2017-10-27 11:28:59 C 03 01 19.36 +08 24 11.4 T08
2017-10-27 11:29:40 C 03 01 19.29 +08 24 10.0 T08
2017-10-27 11:40:38 C 03 01 18.51 +08 23 51.7 T08
2017-10-27 11:56:38 C 03 01 17.40 +08 23 25.6 T08
2017-10-28 01:00:04 C 03 00 24.83 +08 01 42.2 U 160
2017-10-28 01:03:04 C 03 00 24.70 +08 01 36.8 U 160
2017-10-28 01:06:04 C 03 00 24.48 +08 01 31.8 U 160
2017-10-28 10:16:06 C 02 59 47.64 +07 46 21.9 T05
2017-10-28 10:27:03 C 02 59 46.87 +07 46 03.8 T05
2017-10-28 10:37:58 C 02 59 46.08 +07 45 45.7 T05
2017-10-28 11:03:47 C 02 59 44.261 +07 45 02.93 L F51
2017-10-28 11:21:54 C 02 59 42.986 +07 44 32.82 L F51
2017-10-28 11:40:08 C 02 59 41.703 +07 44 02.49 L F51
2017-10-28 11:58:23 C 02 59 40.419 +07 43 32.13 L F51
2017-10-28 12:03:03 C 02 59 40.097 +07 43 24.29 L F51
2017-10-28 12:20:19 C 02 59 38.884 +07 42 55.51 L F51
2017-10-28 12:54:43 C 02 59 36.469 +07 41 58.24 L F51
2017-10-29 06:56:57 C 02 58 23.49 +07 11 55.8 U 703
2017-10-29 07:05:07 C 02 58 22.90 +07 11 42.4 U 703
2017-10-29 07:15:11 C 02 58 22.21 +07 11 25.3 U 703
2017-10-29 07:23:17 C 02 58 21.63 +07 11 12.2 U 703
2017-10-30 09:46:54 C 02 56 33.41 +06 27 15.8 T08
2017-10-30 09:57:10 C 02 56 32.68 +06 26 59.2 T08
2017-10-30 10:07:22 C 02 56 31.94 +06 26 41.9 T08
2017-10-30 10:17:37 C 02 56 31.25 +06 26 24.8 T08
2017-11-01 21:55:18 C 02 52 24.02 +04 47 07.8 q 160
2017-11-01 21:57:16 C 02 52 23.88 +04 47 04.3 q 160
2017-11-01 21:59:14 C 02 52 23.74 +04 47 01.2 q 160
2017-11-09 09:51:32 C 02 39 56.22 -00 04 06.6 U T05
2017-11-09 10:04:12 C 02 39 55.33 -00 04 25.9 U T05
2017-11-09 10:19:31 C 02 39 54.23 -00 04 50.0 U T05
2017-11-09 10:31:47 C 02 39 53.37 -00 05 09.3 U T05
2017-11-11 09:36:56 C 02 36 43.00 -01 17 31.4 U T08
2017-11-11 09:47:13 C 02 36 42.26 -01 17 46.5 U T08
2017-11-11 09:57:55 C 02 36 41.49 -01 18 02.8 U T08
2017-11-11 10:09:03 C 02 36 40.75 -01 18 20.0 U T08
2017-11-13 09:32:38 C 02 33 33.38 -02 28 52.9 U T05
2017-11-13 09:43:23 C 02 33 32.67 -02 29 09.0 U T05
2017-11-13 09:54:04 C 02 33 31.95 -02 29 24.2 U T05
2017-11-13 10:05:53 C 02 33 31.13 -02 29 41.4 U T05
2017-11-15 05:53:01 C 02 30 42.89 -03 32 37.2 U 703
2017-11-15 06:00:40 C 02 30 42.38 -03 32 47.9 U 703
2017-11-15 06:08:17 C 02 30 41.88 -03 32 58.5 U 703
2017-11-15 06:15:54 C 02 30 41.41 -03 33 09.6 U 703
2017-11-15 09:16:27 C 02 30 30.02 -03 37 20.9 U T08
2017-11-15 09:22:01 C 02 30 29.61 -03 37 29.5 U T08
2017-11-15 09:28:10 C 02 30 29.24 -03 37 38.0 U T08