18172 (2000 QL7)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5110299298 ± 6.25e-09
Semi-major axis (a)2.4257654377 AU ± 9.50e-10
Inclination (i)17.82779980° ± 1.30e-06
Long. of Asc. Node (Ω)338.42358622° ± 3.04e-06
Arg. of Perihelion (ω)100.76252583° ± 4.20e-06
Mean Anomaly (M)206.68326087° ± 8.97e-07
Mean Motion (n)0.2608789695°/day ± 1.53e-10
Perihelion dist (q)1.18612670 AU ± 1.52e-08
Aphelion dist (Q)3.66540418 AU ± 1.52e-08
Orbital Period3.77809789 yr ± 2.22e-09
Physical Parameters
H (abs. magnitude)15.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.341″
Uncertainty0
Orbit TypeAmor
MOID0.365243 AU
Observations Used4239
Gaia Obs Used36
Oppositions29
Arc Total1977-2024
First Observation Used1977-07-21
Last Observation Used2024-05-09
Observations (6767)
Date Type RA Dec Mag Band Observatory
2005-03-04 06:49:35 C 11 15 05.75 -01 10 18.6 r 703
2005-03-04 07:04:16 C 11 15 04.61 -01 10 22.2 r 703
2005-03-04 07:19:07 C 11 15 03.43 -01 10 26.2 r 703
2005-03-06 23:57:33 C 11 10 12.60 -01 26 27.5 c A41
2005-03-07 00:38:43 C 11 10 09.49 -01 26 37.4 c A41
2005-03-07 01:19:52 C 11 10 06.39 -01 26 46.7 c A41
2005-03-08 04:27:35 C 11 08 08.39 -01 32 57.7 c 691
2005-03-08 05:04:07 C 11 08 05.67 -01 33 05.9 c 691
2005-03-08 05:43:31 C 11 08 02.73 -01 33 14.8 c 691
2005-03-08 23:12:04 C 11 06 47.25 -01 37 08.0 r 203
2005-03-08 23:50:07 C 11 06 44.47 -01 37 16.8 r 203
2005-03-09 22:05:32 C 11 05 10.33 -01 42 00.2 r 203
2005-03-09 22:29:06 C 11 05 08.63 -01 42 05.6 r 203
2005-03-10 05:08:55 C 11 04 40.96 -01 43 27.2 o 699
2005-03-10 05:39:17 C 11 04 38.76 -01 43 33.6 o 699
2005-03-10 06:06:38 C 11 04 36.78 -01 43 37.1 r 703
2005-03-10 06:09:38 C 11 04 36.60 -01 43 39.7 o 699
2005-03-10 06:20:36 C 11 04 35.74 -01 43 41.8 r 703
2005-03-10 06:34:31 C 11 04 34.75 -01 43 44.5 r 703
2005-03-10 06:39:59 C 11 04 34.41 -01 43 46.2 o 699
2005-03-10 06:48:27 C 11 04 33.73 -01 43 47.3 r 703
2005-03-10 22:15:44 C 11 03 29.71 -01 46 57.6 r 203
2005-03-10 22:40:12 C 11 03 27.98 -01 47 03.4 o A62
2005-03-10 22:41:46 C 11 03 27.87 -01 47 03.5 o A62
2005-03-10 22:43:20 C 11 03 27.75 -01 47 04.0 o A62
2005-03-10 22:44:54 C 11 03 27.65 -01 47 04.1 o A62
2005-03-10 22:46:29 C 11 03 27.54 -01 47 04.5 o A62
2005-03-10 22:50:04 C 11 03 27.27 -01 47 05.2 o A62
2005-03-10 22:51:37 C 11 03 27.16 -01 47 05.8 o A62
2005-03-10 22:53:12 C 11 03 27.06 -01 47 06.0 o A62
2005-03-10 22:54:46 C 11 03 26.95 -01 47 06.2 o A62
2005-03-10 22:56:21 C 11 03 26.85 -01 47 06.5 o A62
2005-03-10 22:58:30 C 11 03 26.68 -01 47 06.8 r 203
2005-03-10 22:59:56 C 11 03 26.59 -01 47 07.1 o A62
2005-03-10 23:01:30 C 11 03 26.47 -01 47 07.6 o A62
2005-03-10 23:03:04 C 11 03 26.36 -01 47 07.9 o A62
2005-03-10 23:04:38 C 11 03 26.25 -01 47 08.2 o A62
2005-03-10 23:06:12 C 11 03 26.15 -01 47 08.4 o A62
2005-03-11 10:03:49 C 11 02 40.81 -01 49 17.0 17.2 c 704
2005-03-11 10:19:47 C 11 02 39.70 -01 49 20.3 17.0 c 704
2005-03-11 10:34:53 C 11 02 38.65 -01 49 23.5 17.0 c 704
2005-03-11 10:49:59 C 11 02 37.60 -01 49 25.7 17.1 c 704
2005-03-11 11:06:46 C 11 02 36.44 -01 49 29.9 17.1 c 704
2005-03-13 13:40:27 C 10 59 16.05 -01 59 02.7 r 379
2005-03-13 13:49:03 C 10 59 15.45 -01 59 04.7 r 379
2005-03-14 22:31:02 C 10 57 10.72 -02 04 54.1 o 084
2005-03-14 22:35:41 C 10 57 10.40 -02 04 55.1 o 084
2005-03-15 22:33:42 C 10 55 41.99 -02 08 57.9 o 084
2005-03-15 22:38:21 C 10 55 41.70 -02 08 58.2 o 084
2005-03-16 22:20:51 C 10 54 16.69 -02 12 49.5 o 084