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
2017-10-16 08:09:18 C 03 17 33.26 +15 27 19.3 U 703
2017-10-16 22:47:00 C 03 16 46.34 +15 05 34.9 o L52
2017-10-16 22:50:33 C 03 16 46.16 +15 05 29.5 o L52
2017-10-16 22:54:13 C 03 16 45.99 +15 05 24.0 o L52
2017-10-17 00:19:49 C 03 16 41.19 +15 03 17.0 o L52
2017-10-17 00:23:30 C 03 16 41.03 +15 03 10.0 o L52
2017-10-19 01:21:24 C 03 13 57.85 +13 49 00.4 q 160
2017-10-19 01:24:23 C 03 13 57.70 +13 48 55.6 q 160
2017-10-19 01:27:23 C 03 13 57.55 +13 48 51.6 q 160
2017-10-19 10:00:35 C 03 13 27.93 +13 35 42.1 U 703
2017-10-19 10:08:04 C 03 13 27.49 +13 35 31.1 U 703
2017-10-19 10:18:10 C 03 13 26.88 +13 35 15.0 U 703
2017-10-19 10:25:47 C 03 13 26.44 +13 35 03.3 U 703
2017-10-19 11:34:13 C 03 13 22.72 +13 33 20.1 T08
2017-10-19 11:52:20 C 03 13 21.66 +13 32 51.3 T08
2017-10-19 12:06:05 C 03 13 20.82 +13 32 30.9 T08
2017-10-19 12:19:41 C 03 13 20.01 +13 32 10.2 T08
2017-10-21 09:20:29 C 03 10 40.15 +12 21 40.8 U 703
2017-10-21 09:28:21 C 03 10 39.67 +12 21 28.4 U 703
2017-10-21 09:36:12 C 03 10 39.15 +12 21 15.8 U 703
2017-10-23 08:15:21 C 03 07 46.61 +11 06 40.8 U G96
2017-10-23 08:22:53 C 03 07 46.11 +11 06 28.7 U G96
2017-10-23 08:30:21 C 03 07 45.63 +11 06 16.7 U G96
2017-10-23 08:37:52 C 03 07 45.13 +11 06 04.6 U G96
2017-10-23 11:54:55 C 03 07 32.64 +11 00 49.2 T08
2017-10-23 12:01:25 C 03 07 32.20 +11 00 37.7 T08
2017-10-23 12:02:05 C 03 07 32.19 +11 00 37.3 T08
2017-10-23 12:20:55 C 03 07 30.93 +11 00 06.7 T08
2017-10-24 01:16:54 C 03 06 41.78 +10 39 05.7 q 160
2017-10-24 01:19:57 C 03 06 41.61 +10 39 01.0 q 160
2017-10-24 01:23:00 C 03 06 41.40 +10 38 55.7 q 160
2017-10-24 07:53:42 C 03 06 16.64 +10 28 22.8 U 703
2017-10-24 08:01:45 C 03 06 16.11 +10 28 09.7 U 703
2017-10-24 08:09:45 C 03 06 15.54 +10 27 56.5 U 703
2017-10-24 08:17:47 C 03 06 15.03 +10 27 43.5 U 703
2017-10-25 01:11:24 C 03 05 09.47 +10 00 20.4 o K95
2017-10-25 01:15:06 C 03 05 09.31 +10 00 13.4 o K95
2017-10-25 01:20:13 C 03 05 08.91 +10 00 06.4 o K95
2017-10-25 01:31:11 C 03 05 08.18 +09 59 48.2 o K95
2017-10-25 01:35:36 C 03 05 07.88 +09 59 41.0 o K95
2017-10-25 01:39:20 C 03 05 07.62 +09 59 34.7 o K95
2017-10-25 01:43:35 C 03 05 07.34 +09 59 27.7 o K95
2017-10-25 02:49:12 C 03 05 03.01 +09 57 40.2 o K95
2017-10-26 00:45:53 C 03 03 37.43 +09 21 27.5 U 160
2017-10-26 00:49:03 C 03 03 37.21 +09 21 22.2 U 160
2017-10-26 00:51:54 C 03 03 36.97 +09 21 17.7 U 160
2017-10-27 07:15:27 C 03 01 36.51 +08 31 08.7 U 703
2017-10-27 07:23:07 C 03 01 35.95 +08 30 55.9 U 703
2017-10-27 07:30:45 C 03 01 35.39 +08 30 43.4 U 703
2017-10-27 07:47:00 C 03 01 34.28 +08 30 16.5 U 703