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
2019-12-06 01:14:24 S 22 23 40.145 +83 32 26.88 V C57
2019-12-06 01:14:24 s 1 -111689.02 4 +365683.70 5220.0 C57
2019-12-06 01:44:24 S 22 23 39.703 +83 32 45.64 V C57
2019-12-06 01:44:24 s 1 -112504.85 2 +364970.16 3460.0 C57
2019-12-06 02:14:24 S 22 23 38.810 +83 33 04.79 V C57
2019-12-06 02:14:24 s 1 -113318.09 2 +364248.21 7310.0 C57
2019-12-06 02:44:24 S 22 23 38.078 +83 33 23.72 V C57
2019-12-06 02:44:24 s 1 -114128.71 8 +363517.83 6710.0 C57
2019-12-06 03:14:24 S 22 23 37.238 +83 33 43.24 V C57
2019-12-06 03:14:24 s 1 -114936.70 1 +362779.01 1590.0 C57
2019-12-06 03:44:24 S 22 23 37.452 +83 34 02.78 V C57
2019-12-06 03:44:24 s 1 -115742.01 2 +362031.73 1880.0 C57
2019-12-06 04:14:24 S 22 23 37.555 +83 34 22.26 V C57
2019-12-06 04:14:24 s 1 -116544.62 2 +361275.98 7520.0 C57
2019-12-06 04:44:24 S 22 23 36.866 +83 34 42.28 V C57
2019-12-06 04:44:24 s 1 -117344.50 4 +360511.75 8440.0 C57
2019-12-06 05:14:24 S 22 23 36.360 +83 35 01.54 V C57
2019-12-06 05:14:24 s 1 -118141.62 7 +359739.02 4560.0 C57
2019-12-06 05:44:24 S 22 23 35.854 +83 35 21.55 V C57
2019-12-06 05:44:24 s 1 -118935.96 2 +358957.78 5830.0 C57
2019-12-06 06:14:24 S 22 23 35.839 +83 35 40.38 V C57
2019-12-06 06:14:24 s 1 -119727.47 9 +358168.02 2160.0 C57
2019-12-06 06:44:24 S 22 23 36.209 +83 35 59.64 V C57
2019-12-06 06:44:24 s 1 -120516.14 9 +357369.71 3490.0 C57
2019-12-06 07:14:24 S 22 23 35.729 +83 36 19.55 V C57
2019-12-06 07:14:24 s 1 -121301.94 1 +356562.85 9740.0 C57
2019-12-06 07:44:24 S 22 23 35.150 +83 36 37.98 V C57
2019-12-06 07:44:24 s 1 -122084.82 4 +355747.42 850.0 C57
2019-12-06 08:14:24 S 22 23 34.711 +83 36 57.74 V C57
2019-12-06 08:14:24 s 1 -122864.76 7 +354923.40 6750.0 C57
2019-12-06 08:44:24 S 22 23 35.162 +83 37 17.72 V C57
2019-12-06 08:44:24 s 1 -123641.74 0 +354090.78 7350.0 C57
2019-12-06 09:14:24 S 22 23 35.616 +83 37 37.81 V C57
2019-12-06 09:14:24 s 1 -124415.71 1 +353249.55 2580.0 C57
2019-12-06 09:44:24 S 22 23 34.901 +83 37 57.68 V C57
2019-12-06 09:44:24 s 1 -125186.64 9 +352399.68 2380.0 C57
2019-12-06 10:14:24 S 22 23 34.694 +83 38 17.34 V C57
2019-12-06 10:14:24 s 1 -125954.52 0 +351541.16 6660.0 C57
2019-12-06 10:44:24 S 22 23 34.644 +83 38 37.50 V C57
2019-12-06 10:44:24 s 1 -126719.29 3 +350673.97 5350.0 C57
2019-12-06 11:14:24 S 22 23 35.335 +83 38 57.77 V C57
2019-12-06 11:14:24 s 1 -127480.93 4 +349798.10 8370.0 C57
2019-12-06 11:44:24 S 22 23 35.414 +83 39 17.10 V C57
2019-12-06 11:44:24 s 1 -128239.41 2 +348913.53 5650.0 C57
2019-12-06 12:14:24 S 22 23 35.263 +83 39 36.29 V C57
2019-12-06 12:14:24 s 1 -128994.69 2 +348020.24 7100.0 C57
2019-12-06 12:44:24 S 22 23 35.119 +83 39 56.27 V C57
2019-12-06 12:44:24 s 1 -129746.74 1 +347118.21 2650.0 C57
2019-12-06 13:14:24 S 22 23 35.657 +83 40 16.00 V C57
2019-12-06 13:14:24 s 1 -130495.52 4 +346207.43 2220.0 C57