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
2005-03-16 22:25:29 C 10 54 16.40 -02 12 50.3 o 084
2005-03-17 09:27:12 C 10 53 37.43 -02 14 32.5 r 703
2005-03-17 09:37:23 C 10 53 36.83 -02 14 34.7 r 703
2005-03-17 09:47:32 C 10 53 36.22 -02 14 36.1 r 703
2005-03-17 09:57:39 C 10 53 35.64 -02 14 37.6 r 703
2005-03-17 22:13:28 C 10 52 53.81 -02 16 33.5 17.5 r 130
2005-03-17 22:19:16 C 10 52 53.44 -02 16 34.5 17.6 r 130
2005-03-17 22:24:21 C 10 52 53.14 -02 16 35.2 17.5 r 130
2005-03-17 22:29:04 C 10 52 52.88 -02 16 36.1 17.7 r 130
2005-03-20 20:44:46 C 10 49 03.89 -02 26 54.5 c 113
2005-03-20 20:46:52 C 10 49 03.79 -02 26 54.7 c 113
2005-03-20 20:48:58 C 10 49 03.68 -02 26 54.7 c 113
2005-03-20 20:51:04 C 10 49 03.54 -02 26 54.9 c 113
2005-03-20 22:01:59 C 10 48 59.65 -02 27 06.2 o 084
2005-03-21 22:13:27 C 10 47 46.27 -02 30 25.0 o 084
2005-03-21 22:18:07 C 10 47 46.05 -02 30 25.3 o 084
2005-03-22 21:57:20 C 10 46 37.04 -02 33 33.5 o 084
2005-03-22 22:02:01 C 10 46 36.77 -02 33 34.5 o 084
2005-03-29 21:46:38 C 10 39 45.48 -02 53 38.2 o 084
2005-03-29 21:51:17 C 10 39 45.31 -02 53 38.8 o 084
2005-03-30 21:11:32 C 10 38 58.95 -02 56 12.3 o 084
2005-03-30 21:16:11 C 10 38 58.80 -02 56 12.5 o 084
2005-03-31 21:10:26 C 10 38 13.95 -02 58 47.3 o 084
2005-03-31 21:15:05 C 10 38 13.82 -02 58 47.8 o 084
2005-04-03 20:29:15 C 10 36 16.51 -03 06 17.0 c A41
2005-04-03 20:57:48 C 10 36 15.58 -03 06 20.9 o 084
2005-04-03 21:02:26 C 10 36 15.44 -03 06 21.2 o 084
2005-04-03 21:14:15 C 10 36 15.21 -03 06 21.1 c A41
2005-04-03 21:59:47 C 10 36 13.83 -03 06 25.6 c A41
2005-04-04 21:09:28 C 10 35 41.05 -03 08 51.6 o 084
2005-04-04 21:14:06 C 10 35 40.96 -03 08 51.6 o 084
2005-04-05 04:36:41 C 10 35 31.13 -03 09 34.3 r 703
2005-04-05 04:47:07 C 10 35 30.87 -03 09 35.5 r 703
2005-04-05 04:57:38 C 10 35 30.61 -03 09 37.1 r 703
2005-04-05 05:08:07 C 10 35 30.37 -03 09 37.7 r 703
2005-04-06 06:24:44 C 10 34 58.03 -03 12 14.5 17.7 c 704
2005-04-06 06:38:56 C 10 34 57.68 -03 12 15.7 18.6 c 704
2005-04-06 06:52:50 C 10 34 57.35 -03 12 16.8 18.8 c 704
2005-04-09 04:17:41 C 10 33 44.10 -03 19 25.4 18.2 c 704
2005-04-09 04:32:09 C 10 33 43.80 -03 19 26.9 18.6 c 704
2005-04-09 04:52:04 C 10 33 43.48 -03 19 29.1 18.9 c 704
2005-04-09 05:07:48 C 10 33 43.20 -03 19 30.8 18.4 c 704
2005-04-09 05:22:16 C 10 33 42.94 -03 19 32.4 18.4 c 704
2005-04-11 03:16:37 C 10 33 06.38 -03 24 18.5 o 699
2005-04-11 03:46:59 C 10 33 05.97 -03 24 21.0 o 699
2005-04-11 04:17:19 C 10 33 05.50 -03 24 24.3 o 699
2005-04-11 04:47:41 C 10 33 05.11 -03 24 27.4 o 699
2005-05-13 04:20:41 C 10 40 55.52 -05 07 57.5 r 703
2005-05-13 04:33:15 C 10 40 55.82 -05 08 00.3 r 703
2005-05-13 04:45:45 C 10 40 56.14 -05 08 01.2 r 703