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
2019-11-09 16:14:25 S 00 20 38.712 +74 40 58.91 V C57
2019-11-09 16:14:25 s 1 -84572.217 0 +372562.54 60.0 C57
2019-11-09 16:44:25 S 00 20 33.528 +74 41 31.56 V C57
2019-11-09 16:44:25 s 1 -85494.653 0 +372065.93 9900.0 C57
2019-11-09 17:14:25 S 00 20 28.205 +74 42 07.20 V C57
2019-11-09 17:14:25 s 1 -86415.095 0 +371560.65 6510.0 C57
2019-11-09 17:44:25 S 00 20 23.009 +74 42 40.14 V C57
2019-11-09 17:44:25 s 1 -87333.517 0 +371046.68 9820.0 C57
2019-11-09 18:14:25 S 00 20 17.782 +74 43 13.19 V C57
2019-11-09 18:14:25 s 1 -88249.892 0 +370524.03 9760.0 C57
2019-11-09 18:44:25 S 00 20 12.526 +74 43 48.18 V C57
2019-11-09 18:44:25 s 1 -89164.194 0 +369992.69 6250.0 C57
2019-11-09 19:14:25 S 00 20 07.282 +74 44 21.08 V C57
2019-11-09 19:14:25 s 1 -90076.397 0 +369452.63 9240.0 C57
2019-11-09 19:44:25 S 00 20 02.002 +74 44 55.57 V C57
2019-11-09 19:44:25 s 1 -90986.475 0 +368903.87 8640.0 C57
2019-11-09 20:14:25 S 00 19 57.024 +74 45 29.30 V C57
2019-11-09 20:14:25 s 1 -91894.400 0 +368346.39 4390.0 C57
2019-11-09 20:44:25 S 00 19 51.574 +74 46 02.35 V C57
2019-11-09 20:44:25 s 1 -92800.147 0 +367780.18 6410.0 C57
2019-11-09 20:51:59 C 00 25 09.67 +74 49 09.8 V K74
2019-11-09 20:57:13 C 00 25 08.70 +74 49 16.4 V K74
2019-11-09 21:00:19 C 00 25 08.06 +74 49 19.8 V K74
2019-11-09 21:03:28 C 00 25 07.45 +74 49 23.8 V K74
2019-11-09 21:07:37 C 00 25 06.64 +74 49 29.1 V K74
2019-11-09 21:10:45 C 00 25 06.02 +74 49 32.7 V K74
2019-11-09 21:14:25 S 00 19 46.526 +74 46 36.77 V C57
2019-11-09 21:14:25 s 1 -93703.688 0 +367205.23 4630.0 C57
2019-11-09 21:15:58 C 00 25 04.98 +74 49 39.2 V K74
2019-11-09 21:15:58 C 00 25 04.99 +74 49 39.1 V K74
2019-11-09 21:21:10 C 00 25 04.03 +74 49 45.5 V K74
2019-11-09 21:25:19 C 00 25 03.21 +74 49 50.7 V K74
2019-11-09 21:44:25 S 00 19 41.191 +74 47 09.82 V C57
2019-11-09 21:44:25 s 1 -94604.996 0 +366621.53 8980.0 C57
2019-11-09 22:14:25 S 00 19 36.014 +74 47 44.02 V C57
2019-11-09 22:14:25 s 1 -95504.045 0 +366029.08 9390.0 C57
2019-11-09 23:14:25 S 00 19 25.670 +74 48 50.76 V C57
2019-11-09 23:14:25 s 1 -97295.250 0 +364817.87 8070.0 C57
2019-11-09 23:44:25 S 00 19 20.602 +74 49 24.42 V C57
2019-11-09 23:44:25 s 1 -98187.351 0 +364199.10 6210.0 C57
2019-11-10 00:14:25 S 00 19 15.374 +74 49 59.05 V C57
2019-11-10 00:14:25 s 1 -99077.081 0 +363571.52 100.0 C57
2019-11-10 00:44:25 S 00 19 10.318 +74 50 31.24 V C57
2019-11-10 00:44:25 s 1 -99964.412 0 +362935.15 9670.0 C57
2019-11-10 01:14:25 S 00 19 05.134 +74 51 05.47 V C57
2019-11-10 01:14:25 s 1 -100849.31 4 +362289.95 4850.0 C57
2019-11-10 01:44:25 S 00 19 00.019 +74 51 39.31 V C57
2019-11-10 01:44:25 s 1 -101731.75 9 +361635.93 5560.0 C57
2019-11-10 02:14:25 S 00 18 54.857 +74 52 11.64 V C57
2019-11-10 02:14:25 s 1 -102611.71 8 +360973.07 1720.0 C57