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
2015-09-12 05:55:29 C 21 40 46.26 -16 16 35.5 R G45
2015-09-12 06:03:17 C 21 40 45.76 -16 16 34.1 R G45
2015-09-12 06:10:57 C 21 40 45.27 -16 16 32.8 R G45
2015-09-12 06:18:02 C 21 40 44.82 -16 16 31.6 R G45
2015-09-12 06:25:24 C 21 40 44.34 -16 16 30.0 R G45
2015-09-14 04:41:10 C 21 37 55.20 -16 08 14.1 R G45
2015-09-14 04:46:44 C 21 37 54.82 -16 08 12.9 R G45
2015-09-14 04:54:45 C 21 37 54.33 -16 08 11.8 R G45
2015-09-14 05:04:01 C 21 37 53.76 -16 08 09.7 R G45
2015-09-14 05:11:20 C 21 37 53.32 -16 08 08.2 R G45
2015-09-15 09:46:52 C 21 36 11.77 -16 02 32.3 u Q60
2015-09-15 10:00:14 C 21 36 10.95 -16 02 29.5 u Q60
2015-09-15 10:13:30 C 21 36 10.18 -16 02 26.9 u Q60
2015-09-30 23:51:11 C 21 18 29.03 -14 28 29.5 o Z22
2015-10-01 00:48:42 C 21 18 26.95 -14 28 11.0 o Z22
2015-10-01 00:52:23 C 21 18 26.93 -14 28 10.7 o Z22
2015-10-02 02:12:00 C 21 17 36.69 -14 20 25.9 q G96
2015-10-02 02:19:21 C 21 17 36.45 -14 20 23.5 q G96
2015-10-02 02:26:43 C 21 17 36.19 -14 20 21.3 q G96
2015-10-02 02:34:05 C 21 17 35.94 -14 20 19.1 q G96
2015-10-09 03:27:53 C 21 13 14.54 -13 24 51.6 q G96
2015-10-09 03:34:31 C 21 13 14.39 -13 24 49.8 q G96
2015-10-09 03:41:06 C 21 13 14.25 -13 24 46.9 q G96
2015-10-09 03:47:44 C 21 13 14.12 -13 24 44.7 q G96
2015-10-09 06:46:34 C 21 13 10.716 -13 23 41.53 L F51
2015-10-09 07:03:21 C 21 13 10.365 -13 23 35.71 L F51
2015-10-09 07:20:08 C 21 13 10.014 -13 23 29.84 L F51
2015-10-09 07:39:49 C 21 13 09.604 -13 23 22.94 L F51
2015-10-10 03:43:16 C 21 12 48.03 -13 16 23.5 q G96
2015-10-10 03:46:28 C 21 12 47.96 -13 16 22.2 q G96
2015-10-10 03:49:37 C 21 12 47.91 -13 16 21.1 q G96
2015-10-10 03:52:48 C 21 12 47.84 -13 16 19.7 q G96
2015-10-10 06:54:09 C 21 12 44.750 -13 15 14.77 L F51
2015-10-10 07:25:41 C 21 12 44.151 -13 15 03.62 L F51
2015-10-10 07:41:29 C 21 12 43.850 -13 14 58.04 L F51
2015-10-16 01:59:26 C 21 11 09.09 -12 24 17.7 R G45
2015-10-16 02:06:44 C 21 11 09.03 -12 24 14.7 R G45
2015-10-16 02:13:58 C 21 11 08.98 -12 24 12.0 R G45
2015-10-16 02:20:31 C 21 11 08.92 -12 24 09.7 R G45
2015-10-16 02:27:22 C 21 11 08.86 -12 24 07.4 R G45
2015-10-16 02:30:31 C 21 11 08.86 -12 24 05.4 R G45
2015-10-16 02:37:51 C 21 11 08.80 -12 24 03.4 R G45
2015-10-16 02:45:24 C 21 11 08.73 -12 24 00.0 R G45
2015-10-16 02:59:02 C 21 11 08.65 -12 23 54.6 R G45
2015-10-17 02:21:08 C 21 11 01.62 -12 14 58.5 R G45
2015-10-17 02:39:04 C 21 11 01.50 -12 14 52.0 R G45
2015-10-17 02:46:01 C 21 11 01.46 -12 14 49.0 R G45
2015-10-17 02:53:02 C 21 11 01.42 -12 14 46.4 R G45
2015-10-19 01:30:57 C 21 10 54.96 -11 56 37.8 q H21
2015-10-19 01:36:03 C 21 10 54.95 -11 56 35.9 q H21