2009 UL1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4314314905 ± 1.24e-06
Semi-major axis (a)1.3523601278 AU ± 8.94e-09
Inclination (i)33.51679041° ± 7.38e-05
Long. of Asc. Node (Ω)201.32057888° ± 5.32e-06
Arg. of Perihelion (ω)272.09556027° ± 1.63e-04
Mean Anomaly (M)42.46376533° ± 2.78e-05
Mean Motion (n)0.6267202674°/day ± 6.21e-09
Perihelion dist (q)0.76890938 AU ± 1.68e-06
Aphelion dist (Q)1.93581087 AU ± 1.68e-06
Orbital Period1.57267338 yr ± 1.56e-08
Physical Parameters
H (abs. magnitude)23.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.240″
Uncertainty0
Orbit TypeApollo
MOID0.064538 AU
Observations Used56
Oppositions4
Arc Total2009-2020
First Observation Used2009-10-17
Last Observation Used2020-10-20
Observations (61)
Date Type RA Dec Mag Band Observatory
2009-10-17 05:40:56 C 00 52 29.78 -02 37 54.5 r G96
2009-10-17 05:51:57 C 00 52 28.88 -02 40 24.6 r G96
2009-10-17 06:02:32 C 00 52 28.02 -02 42 51.0 r G96
2009-10-17 07:05:07 C 00 52 22.84 -02 57 04.9 r G96
2009-10-17 07:06:47 C 00 52 22.70 -02 57 27.9 r G96
2009-10-17 07:08:24 C 00 52 22.60 -02 57 49.8 r G96
2009-10-17 07:10:04 C 00 52 22.43 -02 58 12.5 r G96
2009-10-17 08:36:54 C 00 52 15.12 -03 18 05.6 o H01
2009-10-17 08:38:17 C 00 52 15.28 -03 18 23.4 c 854
2009-10-17 08:45:46 C 00 52 14.60 -03 20 06.5 c 854
2009-10-17 08:53:15 C 00 52 14.00 -03 21 47.5 c 854
2009-10-17 09:07:48 C 00 52 12.69 -03 25 11.1 o H01
2009-10-17 09:15:36 C 00 52 12.08 -03 26 58.5 o H01
2009-10-17 09:23:04 C 00 52 11.51 -03 28 41.8 o H01
2009-10-17 22:41:12 C 00 51 23.05 -06 36 07.9 r J95
2009-10-17 22:45:51 C 00 51 22.60 -06 37 15.2 r J95
2009-10-17 22:50:06 C 00 51 22.30 -06 38 15.8 r J95
2009-10-18 00:23:57 C 00 51 13.87 -07 00 39.6 v 204
2009-10-18 05:43:09 C 00 50 53.23 -08 17 43.1 o H55
2009-10-18 05:50:29 C 00 50 52.59 -08 19 29.8 o H55
2009-10-18 05:59:21 C 00 50 51.81 -08 21 39.1 o H55
2009-10-18 06:12:10 C 00 50 52.11 -08 24 41.3 o H01
2009-10-18 06:17:26 C 00 50 51.66 -08 25 58.1 o H01
2009-10-18 06:42:28 C 00 50 49.45 -08 32 03.9 o H01
2009-10-18 09:09:46 C 00 50 36.88 -09 08 00.2 c 926
2009-10-18 09:14:41 C 00 50 36.46 -09 09 11.9 c 926
2009-10-18 09:19:35 C 00 50 36.05 -09 10 24.1 c 926
2020-10-15 04:34:07 C 00 04 31.12 +09 00 48.6 V G96
2020-10-15 04:43:01 C 00 04 29.97 +08 59 22.9 V G96
2020-10-15 04:51:55 C 00 04 28.84 +08 57 57.1 V G96
2020-10-15 05:00:49 C 00 04 27.75 +08 56 31.0 V G96
2020-10-15 07:17:22 C 00 04 10.39 +08 34 23.8 V I52
2020-10-15 07:22:12 C 00 04 09.78 +08 33 36.4 V I52
2020-10-15 07:24:37 C 00 04 09.47 +08 33 12.8 V I52
2020-10-15 20:08:43 C 00 02 46.20 +06 26 11.2 V Z84
2020-10-15 20:26:13 C 00 02 43.99 +06 23 12.8 V Z84
2020-10-15 20:44:01 C 00 02 41.72 +06 20 11.9 V Z84
2020-10-15 22:49:05 C 00 02 25.44 +05 58 46.0 V I93
2020-10-15 23:01:52 C 00 02 23.81 +05 56 34.7 V I93
2020-10-15 23:14:39 C 00 02 22.15 +05 54 22.9 V I93
2020-10-16 04:35:48 C 00 01 46.72 +04 59 04.9 V G96
2020-10-16 04:42:09 C 00 01 45.85 +04 57 59.2 V I52
2020-10-16 04:43:21 C 00 01 45.71 +04 57 46.4 V I52
2020-10-16 04:44:02 C 00 01 45.61 +04 57 39.3 V G96
2020-10-16 04:44:34 C 00 01 45.53 +04 57 33.3 V I52
2020-10-16 04:52:17 C 00 01 44.52 +04 56 13.0 V G96
2020-10-16 05:00:31 C 00 01 43.43 +04 54 46.6 V G96
2020-10-17 04:30:21 C 23 58 56.13 +00 40 09.9 V I52
2020-10-17 04:31:40 C 23 58 55.94 +00 39 55.3 V I52
2020-10-17 04:32:59 C 23 58 55.77 +00 39 40.7 V I52