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
2022-05-27 03:45:43 C 09 23 00.668 -02 05 26.34 V 703
2022-05-27 03:53:52 C 09 23 01.972 -02 05 14.96 V 703
2022-05-27 23:29:05 C 09 26 16.651 -01 39 30.02 V W68
2022-05-27 23:34:04 C 09 26 17.494 -01 39 22.97 V W68
2022-05-27 23:42:04 C 09 26 18.797 -01 39 12.28 V W68
2022-05-27 23:57:37 C 09 26 21.341 -01 38 52.15 V W68
2022-07-16 06:42:04 C 12 26 32.623 +14 18 07.67 V T08
2022-07-16 06:46:39 C 12 26 33.175 +14 18 07.31 V T08
2022-07-16 06:57:50 C 12 26 34.788 +14 18 12.20 V T08
2022-07-16 07:15:33 C 12 26 37.114 +14 18 18.18 V T08
2022-07-21 06:37:40 C 12 42 41.938 +14 54 14.87 V T05
2022-07-21 06:42:54 C 12 42 42.571 +14 54 17.14 V T05
2022-07-21 06:50:43 C 12 42 43.670 +14 54 18.83 V T05
2022-07-21 07:09:38 C 12 42 46.142 +14 54 23.94 V T05
2022-07-27 06:24:43 C 13 01 39.209 +15 26 33.72 V T08
2022-07-27 06:33:58 C 13 01 40.399 +15 26 34.48 V T08
2022-07-27 06:51:01 C 13 01 42.607 +15 26 38.47 V T08
2022-07-27 06:59:33 C 13 01 43.781 +15 26 40.74 V T08
2024-01-07 06:03:47 C 09 16 48.974 -63 25 36.19 V W68
2024-01-07 06:07:47 C 09 16 48.852 -63 25 41.30 V W68
2024-01-07 06:40:38 C 09 16 49.044 -63 26 17.05 V W68
2024-01-07 06:45:12 C 09 16 49.188 -63 26 21.80 V W68
2024-01-12 02:26:39 S 09 17 15.67 -65 27 21.8 L C51
2024-01-12 14:49:50 S 09 17 14.51 -65 39 43.6 L C51
2024-01-12 16:22:48 S 09 17 14.50 -65 41 15.5 L C51
2024-01-12 17:55:36 S 09 17 14.25 -65 42 48.4 L C51
2024-01-13 06:18:58 S 09 17 12.48 -65 55 01.1 L C51
2024-02-02 00:33:43 C 09 05 56.162 -72 05 19.21 V M22
2024-02-02 00:37:53 C 09 05 55.886 -72 05 21.19 V M22
2024-02-02 00:54:17 C 09 05 55.058 -72 05 29.40 V M22
2024-02-02 01:09:19 C 09 05 54.298 -72 05 38.04 V M22
2024-02-05 22:37:18 C 09 01 28.692 -72 54 14.40 V M22
2024-02-05 22:45:19 C 09 01 28.226 -72 54 18.40 V M22
2024-02-05 23:25:42 C 09 01 25.726 -72 54 37.55 V M22
2024-02-05 23:30:23 C 09 01 25.567 -72 54 39.85 V M22
2024-02-16 04:09:12 C 08 48 01.063 -74 18 21.82 V W68
2024-02-16 04:13:48 C 08 48 00.624 -74 18 22.75 V W68
2024-02-16 04:22:23 C 08 48 00.130 -74 18 24.77 V W68
2024-02-16 04:38:51 C 08 47 59.006 -74 18 27.36 V W68
2024-02-17 21:44:11 C 08 45 44.738 -74 26 04.74 V M22
2024-02-17 22:08:53 C 08 45 43.195 -74 26 08.45 V M22
2024-02-17 22:20:11 C 08 45 42.475 -74 26 10.14 V M22
2024-02-17 22:25:05 C 08 45 42.077 -74 26 10.93 V M22
2024-03-08 21:21:21 C 08 32 52.394 -73 24 37.58 V M22
2024-03-08 21:26:02 C 08 32 52.262 -73 24 34.88 V M22
2024-03-08 21:35:17 C 08 32 52.298 -73 24 30.82 V M22
2024-03-08 21:49:52 C 08 32 52.378 -73 24 24.05 V M22
2024-03-15 02:51:28 C 08 37 35.237 -71 58 03.86 V W68
2024-03-15 02:55:34 C 08 37 35.419 -71 58 01.06 V W68
2024-03-15 03:04:49 C 08 37 35.839 -71 57 54.18 V W68