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
2015-08-06 08:39:00 C 22 34 55.07 -17 03 56.3 R G45
2015-08-08 18:21:16 C 22 32 13.36 -17 04 32.9 o Q60
2015-08-08 18:34:54 C 22 32 12.64 -17 04 32.7 o Q60
2015-08-08 18:48:22 C 22 32 11.95 -17 04 33.2 o Q60
2015-08-12 11:05:36 C 22 27 42.805 -17 05 31.05 L F51
2015-08-12 11:22:45 C 22 27 41.858 -17 05 31.16 L F51
2015-08-12 11:39:54 C 22 27 40.909 -17 05 31.28 L F51
2015-08-14 07:32:04 C 22 25 17.52 -17 05 45.8 R G45
2015-08-14 07:38:46 C 22 25 17.11 -17 05 45.7 R G45
2015-08-14 08:03:02 C 22 25 15.71 -17 05 46.3 R G45
2015-08-14 08:06:34 C 22 25 15.52 -17 05 46.3 R G45
2015-08-14 08:13:36 C 22 25 15.17 -17 05 46.5 R G45
2015-08-14 08:20:55 C 22 25 14.69 -17 05 45.6 R G45
2015-08-15 07:31:45 C 22 23 56.54 -17 05 48.2 R G45
2015-08-15 07:38:45 C 22 23 56.09 -17 05 48.2 R G45
2015-08-15 07:45:46 C 22 23 55.70 -17 05 47.1 R G45
2015-08-15 07:55:40 C 22 23 55.08 -17 05 48.2 R G45
2015-08-15 08:12:34 C 22 23 54.13 -17 05 47.7 R G45
2015-08-15 08:19:42 C 22 23 53.70 -17 05 47.6 R G45
2015-08-15 08:26:18 C 22 23 53.33 -17 05 48.0 R G45
2015-08-15 08:34:41 C 22 23 52.84 -17 05 48.2 R G45
2015-08-18 00:56:36 C 22 20 07.52 -17 05 32.2 o Z22
2015-08-18 01:07:40 C 22 20 06.82 -17 05 32.3 o Z22
2015-08-18 01:18:33 C 22 20 06.24 -17 05 32.2 o Z22
2015-08-18 09:46:51 C 22 19 35.54 -17 05 27.1 q 703
2015-08-18 09:59:17 C 22 19 34.66 -17 05 27.5 q 703
2015-08-18 10:24:10 C 22 19 33.19 -17 05 27.1 q 703
2015-08-27 06:15:53 C 22 06 03.74 -16 59 00.1 q H21
2015-08-27 06:20:51 C 22 06 03.40 -16 58 59.8 q H21
2015-08-27 06:25:49 C 22 06 03.09 -16 58 59.3 q H21
2015-08-27 06:30:46 C 22 06 02.75 -16 58 59.5 q H21
2015-08-27 06:35:47 C 22 06 02.40 -16 58 59.1 q H21
2015-09-02 05:07:48 C 21 56 29.67 -16 48 26.9 u H21
2015-09-02 05:18:33 C 21 56 28.94 -16 48 25.7 u H21
2015-09-02 05:23:46 C 21 56 28.57 -16 48 25.4 u H21
2015-09-02 05:28:48 C 21 56 28.22 -16 48 25.1 u H21
2015-09-02 05:33:49 C 21 56 27.86 -16 48 24.5 u H21
2015-09-02 05:39:41 C 21 56 27.47 -16 48 24.0 u H21
2015-09-05 08:52:48 C 21 51 25.652 -16 40 23.14 L F51
2015-09-05 09:08:36 C 21 51 24.565 -16 40 21.28 L F51
2015-09-05 09:24:45 C 21 51 23.458 -16 40 19.43 L F51
2015-09-05 09:40:53 C 21 51 22.350 -16 40 17.53 L F51
2015-09-06 09:07:39 C 21 49 49.179 -16 37 26.37 L F51
2015-09-06 09:23:49 C 21 49 48.075 -16 37 24.37 L F51
2015-09-06 09:56:04 C 21 49 45.873 -16 37 20.27 L F51
2015-09-11 05:55:20 C 21 42 16.16 -16 20 36.4 R G45
2015-09-11 06:02:54 C 21 42 15.71 -16 20 35.0 R G45
2015-09-11 06:10:30 C 21 42 15.20 -16 20 33.8 R G45
2015-09-11 06:18:19 C 21 42 14.71 -16 20 32.7 R G45
2015-09-11 06:25:27 C 21 42 14.24 -16 20 31.2 R G45