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
2015-10-19 01:40:59 C 21 10 54.93 -11 56 33.8 q H21
2015-10-19 01:45:54 C 21 10 54.92 -11 56 31.9 q H21
2015-10-19 02:00:46 C 21 10 54.88 -11 56 26.3 q H21
2015-11-02 02:37:56 C 21 14 50.20 -09 33 33.2 q 703
2015-11-02 02:45:18 C 21 14 50.37 -09 33 29.5 q 703
2015-11-02 02:52:42 C 21 14 50.54 -09 33 27.1 q 703
2015-11-02 03:00:09 C 21 14 50.71 -09 33 23.1 q 703
2015-11-04 22:03:50 C 21 16 32.56 -09 02 28.0 o Z22
2015-11-04 22:15:33 C 21 16 32.78 -09 02 21.3 o Z22
2015-11-04 22:31:30 C 21 16 33.24 -09 02 13.8 o Z22
2015-11-07 01:23:47 C 21 18 02.21 -08 38 10.1 R G45
2015-11-07 01:23:53 C 21 18 02.20 -08 38 10.5 R G45
2015-11-07 01:31:06 C 21 18 02.46 -08 38 06.7 R G45
2015-11-07 01:38:26 C 21 18 02.67 -08 38 03.0 R G45
2015-11-07 01:45:16 C 21 18 02.86 -08 37 59.9 R G45
2015-11-07 01:48:17 C 21 18 02.93 -08 37 58.5 R G45
2015-11-07 01:56:14 C 21 18 03.20 -08 37 54.7 R G45
2015-11-08 02:38:45 C 21 18 49.74 -08 26 02.8 q 703
2015-11-08 02:44:32 C 21 18 49.93 -08 25 59.4 q 703
2015-11-08 02:50:18 C 21 18 50.14 -08 25 56.4 q 703
2015-11-08 02:56:04 C 21 18 50.34 -08 25 54.6 q 703
2015-11-10 01:11:28 C 21 20 23.63 -08 03 21.6 R G45
2015-11-10 01:19:07 C 21 20 23.91 -08 03 18.0 R G45
2015-11-10 01:33:48 C 21 20 24.40 -08 03 10.3 R G45
2015-11-10 01:34:01 C 21 20 24.43 -08 03 09.9 R G45
2015-11-10 01:41:02 C 21 20 24.61 -08 03 07.1 R G45
2015-11-10 16:32:33 C 21 20 56.28 -07 55 47.8 o 461
2015-11-10 16:37:13 C 21 20 56.42 -07 55 45.7 o 461
2015-11-10 16:41:55 C 21 20 56.65 -07 55 42.9 o 461
2015-11-11 00:14:35 C 21 21 12.92 -07 51 58.1 u H21
2015-11-11 00:17:30 C 21 21 13.03 -07 51 56.9 u H21
2015-11-11 00:20:23 C 21 21 13.14 -07 51 55.4 u H21
2015-11-11 00:23:17 C 21 21 13.23 -07 51 54.0 u H21
2015-11-11 00:26:11 C 21 21 13.33 -07 51 52.7 u H21
2015-11-11 00:29:05 C 21 21 13.43 -07 51 50.9 u H21
2015-11-11 00:31:59 C 21 21 13.52 -07 51 49.5 u H21
2015-11-11 00:34:53 C 21 21 13.62 -07 51 48.1 u H21
2015-11-11 00:38:30 C 21 21 13.76 -07 51 46.5 u H21
2015-11-14 01:31:09 C 21 24 01.89 -07 15 01.0 R G45
2015-11-14 01:38:02 C 21 24 02.17 -07 14 57.4 R G45
2015-11-14 01:41:06 C 21 24 02.28 -07 14 56.1 R G45
2015-11-14 01:44:58 C 21 24 02.43 -07 14 54.0 R G45
2015-11-14 01:51:57 C 21 24 02.69 -07 14 50.2 R G45
2015-11-22 03:47:58 C 21 32 55.04 -05 31 31.5 q 703
2015-11-22 03:56:38 C 21 32 55.58 -05 31 26.4 q 703
2015-11-22 04:13:57 C 21 32 56.40 -05 31 17.1 q 703
2015-11-23 01:29:32 C 21 34 02.17 -05 19 26.7 R G45
2015-11-23 01:29:38 C 21 34 02.20 -05 19 26.3 R G45
2015-11-23 01:35:56 C 21 34 02.49 -05 19 22.9 R G45
2015-11-23 01:36:02 C 21 34 02.50 -05 19 23.3 R G45