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
2019-11-06 02:14:25 s 1 +83526.239 0 +327599.57 5770.0 C57
2019-11-06 02:44:25 S 00 36 42.106 +72 57 34.45 V C57
2019-11-06 02:44:25 s 1 +82619.823 0 +328665.61 120.0 C57
2019-11-06 02:49:20 C 00 40 37.64 +72 51 10.0 U I41
2019-11-06 03:14:25 S 00 36 36.055 +72 58 13.22 V C57
2019-11-06 03:14:25 s 1 +81710.712 0 +329720.92 3790.0 C57
2019-11-06 03:44:25 S 00 36 30.125 +72 58 52.72 V C57
2019-11-06 03:44:25 s 1 +80798.953 0 +330765.56 6920.0 C57
2019-11-06 04:14:25 S 00 36 24.228 +72 59 30.48 V C57
2019-11-06 04:14:25 s 1 +79884.593 0 +331799.55 9670.0 C57
2019-11-06 04:44:25 S 00 36 18.413 +73 00 10.12 V C57
2019-11-06 04:44:25 s 1 +78967.680 0 +332822.94 2180.0 C57
2019-11-06 04:45:53 C 00 40 16.94 +72 53 54.9 U I41
2019-11-06 05:14:25 S 00 36 12.314 +73 00 49.75 V C57
2019-11-06 05:14:25 s 1 +78048.260 0 +333835.75 4600.0 C57
2019-11-06 05:44:25 S 00 36 06.516 +73 01 28.67 V C57
2019-11-06 05:44:25 s 1 +77126.377 0 +334838.04 7060.0 C57
2019-11-06 05:48:02 C 00 40 05.77 +72 55 21.0 U I41
2019-11-06 05:51:13 C 00 40 05.21 +72 55 25.3 U I41
2019-11-06 06:03:47 C 00 40 02.93 +72 55 42.7 U I41
2019-11-06 06:06:59 C 00 40 02.36 +72 55 47.0 U I41
2019-11-06 06:14:25 S 00 36 00.413 +73 02 08.27 V C57
2019-11-06 06:14:25 s 1 +76202.077 0 +335829.83 9720.0 C57
2019-11-06 06:44:25 S 00 35 54.691 +73 02 45.78 V C57
2019-11-06 06:44:25 s 1 +75275.404 0 +336811.16 2700.0 C57
2019-11-06 07:14:25 S 00 35 48.588 +73 03 25.70 V C57
2019-11-06 07:14:25 s 1 +74346.402 0 +337782.06 6150.0 C57
2019-11-06 07:44:25 S 00 35 42.787 +73 04 03.94 V C57
2019-11-06 07:44:25 s 1 +73415.114 0 +338742.58 200.0 C57
2019-11-06 08:14:25 S 00 35 36.842 +73 04 43.32 V C57
2019-11-06 08:14:25 s 1 +72481.582 0 +339692.73 4980.0 C57
2019-11-06 08:44:25 S 00 35 30.835 +73 05 22.20 V C57
2019-11-06 08:44:25 s 1 +71545.849 0 +340632.57 620.0 C57
2019-11-06 09:14:25 S 00 35 25.025 +73 05 59.68 V C57
2019-11-06 09:14:25 s 1 +70607.956 0 +341562.12 7260.0 C57
2019-11-06 09:44:25 S 00 35 19.001 +73 06 39.56 V C57
2019-11-06 09:44:25 s 1 +69667.944 0 +342481.41 5020.0 C57
2019-11-06 10:14:25 S 00 35 13.262 +73 07 17.62 V C57
2019-11-06 10:14:25 s 1 +68725.855 0 +343390.47 4040.0 C57
2019-11-06 10:44:25 S 00 35 07.111 +73 07 56.71 V C57
2019-11-06 10:44:25 s 1 +67781.727 0 +344289.35 4420.0 C57
2019-11-06 11:14:25 S 00 35 01.454 +73 08 35.05 V C57
2019-11-06 11:14:25 s 1 +66835.601 0 +345178.06 6310.0 C57
2019-11-06 11:44:25 S 00 34 55.421 +73 09 12.64 V C57
2019-11-06 11:44:25 s 1 +65887.516 0 +346056.64 9820.0 C57
2019-11-06 12:14:25 S 00 34 49.985 +73 09 51.95 V C57
2019-11-06 12:14:25 s 1 +64937.511 0 +346925.13 5070.0 C57
2019-11-06 13:44:25 S 00 34 31.757 +73 11 46.90 V C57
2019-11-06 13:44:25 s 1 +62076.353 0 +349470.30 2460.0 C57
2019-11-06 14:14:25 S 00 34 25.990 +73 12 26.28 V C57