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
2024-05-08 06:57:00 C 11 27 47.768 +05 44 24.29 V 703
2024-05-08 07:00:19 C 11 27 48.186 +05 44 40.81 V 703
2024-05-09 00:52:41 C 11 30 16.45 +07 11 22.5 834
2024-05-09 01:37:20 C 11 30 22.23 +07 14 53.7 834
2024-05-09 02:08:23 C 11 30 26.515 +07 17 17.56 V W68
2024-05-09 02:12:56 C 11 30 27.115 +07 17 39.19 V W68
2024-05-09 02:22:02 C 11 30 28.289 +07 18 22.14 V W68
2024-05-09 02:36:47 C 11 30 30.209 +07 19 31.76 V W68
2024-05-09 19:26:18 C 11 32 48.23 +08 37 12.9 X G02
2024-05-09 19:31:54 C 11 32 48.96 +08 37 38.5 X G02
2024-05-09 19:37:28 C 11 32 49.69 +08 38 04.1 X G02
2024-05-09 22:22:08 B 11 33 11.15 +08 50 33.9 X L99
2024-05-09 22:24:26 B 11 33 11.37 +08 50 45.1 X L99
2024-05-09 22:26:44 B 11 33 11.72 +08 50 54.9 X L99
2024-05-09 22:29:02 B 11 33 12.07 +08 51 04.5 X L99
2024-05-09 22:31:20 B 11 33 12.27 +08 51 15.6 X L99
2024-05-10 06:09:26 C 11 34 14.462 +09 25 53.33 V 703
2024-05-10 06:12:46 C 11 34 14.876 +09 26 08.16 V 703
2024-05-10 06:16:07 C 11 34 15.298 +09 26 23.21 V 703
2024-05-10 06:19:28 C 11 34 15.744 +09 26 38.29 V 703
2024-05-11 19:42:35 B 11 39 17.400 +12 08 03.01 V 160
2024-05-11 19:46:00 B 11 39 17.729 +12 08 16.30 V 160
2024-05-11 21:07:40 C 11 39 28.15 +12 13 55.5 X L63
2024-05-11 21:20:33 C 11 39 29.78 +12 14 48.7 X L63
2024-05-11 21:33:13 C 11 39 31.40 +12 15 40.8 X L63
2024-05-11 22:06:25 C 11 39 35.959 +12 17 55.50 V Z80
2024-05-11 22:13:27 C 11 39 36.850 +12 18 24.62 V Z80
2024-05-12 06:39:32 C 11 40 43.374 +12 53 04.56 V 703
2024-05-12 06:42:47 C 11 40 43.817 +12 53 18.13 V 703
2024-05-12 06:46:03 C 11 40 44.245 +12 53 31.56 V 703
2024-05-12 06:49:19 C 11 40 44.670 +12 53 44.81 V 703
2024-05-12 19:34:37 C 11 42 26.61 +13 44 44.7 X G02
2024-05-12 19:40:28 C 11 42 27.35 +13 45 07.8 X G02
2024-05-12 19:46:03 C 11 42 28.06 +13 45 29.8 X G02
2024-05-12 20:45:18 C 11 42 35.47 +13 49 23.3 M32
2024-05-12 20:46:58 C 11 42 35.69 +13 49 29.8 M32
2024-05-12 20:48:38 C 11 42 35.89 +13 49 36.5 M32
2024-05-12 20:50:18 C 11 42 36.10 +13 49 42.9 M32
2024-05-12 20:51:58 C 11 42 36.32 +13 49 49.5 M32
2024-05-12 20:53:39 C 11 42 36.54 +13 49 56.1 M32
2024-05-12 20:55:19 C 11 42 36.75 +13 50 02.7 M32
2024-05-12 20:57:23 C 11 42 37.01 +13 50 11.1 M32
2024-05-12 21:12:04 B 11 42 39.18 +13 51 07.0 q M07
2024-05-12 22:11:51 B 11 42 46.79 +13 55 02.5 q M07
2024-05-13 21:36:27 C 11 45 50.37 +15 24 43.8 M32
2024-05-13 21:38:38 C 11 45 50.64 +15 24 51.5 M32
2024-05-13 21:40:46 C 11 45 50.92 +15 24 59.7 M32
2024-05-13 21:42:55 C 11 45 51.19 +15 25 07.6 M32
2024-05-13 21:45:06 C 11 45 51.48 +15 25 15.7 M32
2024-05-13 21:47:14 C 11 45 51.73 +15 25 23.5 M32