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
2007-06-06 03:20:51 C 12 09 02.90 +26 39 32.8 r H45
2007-06-06 03:28:58 C 12 09 04.21 +26 39 44.3 r 703
2007-06-06 03:34:38 C 12 09 04.86 +26 39 51.0 r 703
2007-06-06 03:40:20 C 12 09 05.58 +26 39 57.9 r 703
2007-06-06 03:45:59 C 12 09 06.33 +26 40 04.8 r 703
2007-06-08 04:29:28 C 12 15 21.60 +27 37 20.6 16.8 c 704
2007-06-08 04:58:14 C 12 15 25.16 +27 37 52.2 17.1 c 704
2007-06-08 05:12:33 C 12 15 26.95 +27 38 07.9 17.3 c 704
2007-06-08 05:27:02 C 12 15 28.74 +27 38 23.9 17.4 c 704
2007-06-16 21:19:45 C 12 41 01.82 +30 41 50.4 r 113
2007-06-16 21:21:28 C 12 41 02.02 +30 41 51.5 r 113
2007-06-16 21:23:13 C 12 41 02.26 +30 41 52.6 r 113
2007-06-16 21:24:55 C 12 41 02.45 +30 41 53.3 r 113
2007-06-16 21:26:34 C 12 41 02.65 +30 41 54.6 r 113
2007-06-21 04:31:09 C 12 53 07.65 +31 43 32.1 r 703
2007-06-21 04:39:38 C 12 53 08.55 +31 43 36.5 r 703
2007-06-21 04:48:10 C 12 53 09.60 +31 43 40.5 r 703
2007-06-21 04:56:40 C 12 53 10.50 +31 43 44.2 r 703
2007-07-08 03:51:47 C 13 38 07.95 +33 38 11.4 r H45
2007-07-08 03:53:25 C 13 38 08.11 +33 38 11.5 r H45
2007-07-08 03:57:55 C 13 38 08.58 +33 38 11.9 r H45
2007-07-08 03:59:33 C 13 38 08.76 +33 38 11.9 r H45
2007-07-08 04:00:59 C 13 38 08.91 +33 38 12.3 r H45
2007-07-12 04:21:12 C 13 48 20.63 +33 43 02.5 r H45
2007-07-12 04:24:19 C 13 48 20.96 +33 43 02.1 r H45
2007-07-12 04:26:47 C 13 48 21.20 +33 43 02.7 r H45
2007-07-12 04:38:41 C 13 48 22.45 +33 43 02.7 r H45
2007-07-12 04:40:41 C 13 48 22.68 +33 43 01.9 r H45
2007-07-14 02:58:57 C 13 53 14.71 +33 43 01.3 r H45
2007-07-14 03:03:52 C 13 53 15.23 +33 43 01.1 r H45
2007-07-14 03:05:37 C 13 53 15.42 +33 43 01.0 r H45
2007-07-14 03:07:17 C 13 53 15.58 +33 43 01.0 r H45
2007-07-14 03:08:54 C 13 53 15.76 +33 43 00.9 r H45
2007-09-15 03:13:22 C 16 33 46.76 +25 30 10.2 r 703
2007-09-15 03:22:48 C 16 33 47.88 +25 30 05.5 r 703
2007-09-15 03:32:11 C 16 33 48.81 +25 30 01.8 r 703
2007-09-15 03:41:37 C 16 33 49.89 +25 29 55.3 r 703
2009-04-22 09:25:40 C 18 16 58.58 +09 52 09.1 o H55
2009-04-22 09:29:32 C 18 16 58.68 +09 52 27.8 o H55
2009-04-22 09:36:55 C 18 16 58.85 +09 53 01.5 o H55
2009-04-22 09:39:45 C 18 16 58.92 +09 53 14.5 o H55
2009-04-22 09:43:46 C 18 16 59.02 +09 53 32.9 o H55
2009-05-02 00:51:36 C 18 20 42.23 +26 27 50.8 17.2 r C20
2009-05-04 22:23:24 C 18 20 43.19 +30 48 29.8 r B67
2009-05-04 22:31:09 C 18 20 43.10 +30 48 58.7 r B67
2009-05-04 22:38:47 C 18 20 43.10 +30 49 26.0 r B67
2009-05-05 23:26:35 C 18 20 35.44 +32 17 17.6 w 160
2009-05-05 23:27:36 C 18 20 35.42 +32 17 21.1 w 160
2009-05-05 23:28:59 C 18 20 35.43 +32 17 26.2 w 160
2009-05-06 01:16:23 C 18 20 34.89 +32 23 44.7 r J51