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
2020-01-03 06:43:09 C 03 18 18.75 -31 24 19.6 V T08
2020-01-03 06:50:53 C 03 18 18.59 -31 24 19.7 V T08
2020-01-03 07:09:37 C 03 18 18.11 -31 24 18.7 V T08
2021-08-10 14:18:20 C 04 40 50.999 +17 27 38.70 U F51
2021-08-10 14:26:07 C 04 40 51.608 +17 27 35.14 U F51
2021-08-10 14:33:58 C 04 40 52.207 +17 27 31.65 U F51
2021-08-10 14:41:46 C 04 40 52.813 +17 27 27.94 U F51
2021-08-19 14:40:54 C 04 57 29.042 +15 36 34.83 U F51
2021-08-19 14:50:57 C 04 57 29.788 +15 36 29.18 U F51
2021-08-19 14:55:58 C 04 57 30.160 +15 36 26.33 U F51
2021-09-18 14:06:42 C 05 46 41.869 +06 18 14.23 U F52
2021-09-18 14:21:27 C 05 46 42.725 +06 17 59.23 U F52
2021-09-18 14:36:08 C 05 46 43.590 +06 17 44.38 U F52
2021-09-18 14:50:55 C 05 46 44.451 +06 17 29.55 U F52
2021-11-07 13:10:10 C 06 28 53.65 -22 40 55.3 V T05
2021-11-07 13:12:48 C 06 28 53.65 -22 41 00.2 V T05
2021-11-07 13:18:09 C 06 28 53.62 -22 41 09.5 V T05
2021-11-07 13:28:44 C 06 28 53.70 -22 41 28.5 V T05
2021-11-27 11:29:54 C 06 19 17.46 -36 24 58.6 V T05
2021-11-27 11:32:32 C 06 19 17.33 -36 25 02.1 V T05
2021-11-27 11:37:09 C 06 19 17.19 -36 25 09.5 V T05
2021-11-27 11:55:40 C 06 19 16.33 -36 25 38.4 V T05
2022-01-21 13:09:38 S 04 50 27.223 -50 34 33.92 L C51
2022-01-21 16:17:46 S 04 50 19.862 -50 33 51.98 L C51
2022-01-28 03:28:27 C 04 45 35.830 -49 46 23.92 V W68
2022-01-28 03:34:43 C 04 45 35.647 -49 46 20.60 V W68
2022-01-28 03:42:51 C 04 45 35.438 -49 46 18.05 V W68
2022-01-28 04:02:38 C 04 45 34.963 -49 46 10.38 V W68
2022-02-26 02:29:56 C 04 56 04.817 -43 21 32.36 V W68
2022-02-26 02:30:35 C 04 56 04.826 -43 21 31.68 V W68
2022-02-26 02:44:28 C 04 56 05.472 -43 21 22.50 V W68
2022-02-26 02:47:06 C 04 56 05.681 -43 21 20.34 V W68
2022-02-26 02:48:24 C 04 56 05.623 -43 21 19.30 V W68
2022-02-26 02:58:17 C 04 56 06.173 -43 21 11.81 V W68
2022-02-26 03:02:51 C 04 56 06.427 -43 21 07.63 V W68
2022-02-26 03:04:09 C 04 56 06.454 -43 21 08.06 V W68
2022-04-04 00:51:27 C 06 11 36.127 -30 22 55.99 V W68
2022-04-04 00:58:37 C 06 11 36.998 -30 22 48.43 V W68
2022-04-04 01:03:50 C 06 11 37.591 -30 22 42.60 V W68
2022-04-04 01:27:35 C 06 11 40.339 -30 22 16.54 V W68
2022-04-20 23:57:13 C 07 05 04.788 -22 16 15.82 V W68
2022-04-21 00:02:56 C 07 05 05.575 -22 16 08.94 V W68
2022-04-21 00:13:44 C 07 05 07.126 -22 15 54.94 V W68
2022-04-21 00:31:29 C 07 05 09.595 -22 15 30.46 V W68
2022-05-23 03:26:55 C 09 07 03.227 -04 14 32.21 V 703
2022-05-23 03:35:18 C 09 07 04.656 -04 14 21.16 V 703
2022-05-23 03:43:41 C 09 07 06.046 -04 14 08.70 V 703
2022-05-23 03:52:05 C 09 07 07.507 -04 13 58.51 V 703
2022-05-27 03:29:27 C 09 22 58.015 -02 05 47.47 V 703
2022-05-27 03:37:35 C 09 22 59.351 -02 05 36.92 V 703