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
2019-11-11 20:44:25 s 1 -164495.15 5 +270558.75 1060.0 C57
2019-11-11 23:14:25 S 00 11 41.758 +75 41 29.54 V C57
2019-11-11 23:14:25 s 1 -167018.76 7 +262981.71 1470.0 C57
2019-11-11 23:44:25 S 00 11 37.339 +75 42 02.02 V C57
2019-11-11 23:44:25 s 1 -167502.83 8 +261433.30 4980.0 C57
2019-11-12 00:14:25 S 00 11 32.964 +75 42 34.42 V C57
2019-11-12 00:14:25 s 1 -167979.82 2 +259873.80 1750.0 C57
2019-11-12 00:44:25 S 00 11 28.622 +75 43 07.07 V C57
2019-11-12 00:44:25 s 1 -168449.63 0 +258303.16 1540.0 C57
2019-11-12 01:14:25 S 00 11 24.307 +75 43 39.72 V C57
2019-11-12 01:14:25 s 1 -168912.16 9 +256721.34 4120.0 C57
2019-11-12 01:44:25 S 00 11 19.802 +75 44 11.33 V C57
2019-11-12 01:44:25 s 1 -169367.34 7 +255128.29 9230.0 C57
2019-11-12 02:14:25 S 00 11 15.336 +75 44 44.74 V C57
2019-11-12 02:14:25 s 1 -169815.06 9 +253523.98 6620.0 C57
2019-11-12 02:44:25 S 00 11 11.042 +75 45 17.42 V C57
2019-11-12 02:44:25 s 1 -170255.23 8 +251908.36 6030.0 C57
2019-11-12 03:14:25 S 00 11 06.756 +75 45 49.39 V C57
2019-11-12 03:14:25 s 1 -170687.75 6 +250281.37 7200.0 C57
2019-11-12 03:44:25 S 00 11 02.366 +75 46 21.43 V C57
2019-11-12 03:44:25 s 1 -171112.52 3 +248642.99 9860.0 C57
2019-11-12 04:14:25 S 00 10 58.130 +75 46 53.72 V C57
2019-11-12 04:14:25 s 1 -171529.43 8 +246993.16 3740.0 C57
2019-11-12 04:44:25 S 00 10 53.575 +75 47 27.42 V C57
2019-11-12 04:44:25 s 1 -171938.39 6 +245331.83 8560.0 C57
2019-11-12 05:14:25 S 00 10 49.524 +75 47 59.42 V C57
2019-11-12 05:14:25 s 1 -172339.29 2 +243658.96 4030.0 C57
2019-11-12 05:44:25 S 00 10 45.043 +75 48 31.50 V C57
2019-11-12 05:44:25 s 1 -172732.01 8 +241974.50 9880.0 C57
2019-11-12 06:14:25 S 00 10 40.812 +75 49 03.43 V C57
2019-11-12 06:14:25 s 1 -173116.46 5 +240278.41 5800.0 C57
2019-11-12 09:14:25 S 00 10 15.197 +75 52 19.49 V C57
2019-11-12 09:14:25 s 1 -175242.87 1 +229854.70 5690.0 C57
2019-11-12 09:44:25 S 00 10 11.011 +75 52 51.42 V C57
2019-11-12 09:44:25 s 1 -175566.11 0 +228075.76 3400.0 C57
2019-11-12 10:14:25 S 00 10 06.905 +75 53 23.78 V C57
2019-11-12 10:14:25 s 1 -175880.11 4 +226284.78 8610.0 C57
2019-11-12 10:44:25 S 00 10 02.770 +75 53 56.80 V C57
2019-11-12 10:44:25 s 1 -176184.75 0 +224481.70 970.0 C57
2019-11-12 11:14:25 S 00 09 58.582 +75 54 29.05 V C57
2019-11-12 11:14:25 s 1 -176479.88 6 +222666.48 130.0 C57
2019-11-12 11:44:25 S 00 09 54.302 +75 55 02.28 V C57
2019-11-12 11:44:25 s 1 -176765.38 6 +220839.05 5710.0 C57
2019-11-12 12:14:25 S 00 09 50.222 +75 55 34.57 V C57
2019-11-12 12:14:25 s 1 -177041.11 1 +218999.38 7340.0 C57
2019-11-12 12:44:25 S 00 09 46.277 +75 56 06.68 V C57
2019-11-12 12:44:25 s 1 -177306.91 9 +217147.39 4630.0 C57
2019-11-12 13:14:25 S 00 09 41.935 +75 56 39.08 V C57
2019-11-12 13:14:25 s 1 -177562.66 7 +215283.04 7210.0 C57
2019-11-12 13:44:25 S 00 09 38.009 +75 57 11.23 V C57