PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/18-22:27:50
G03     202.0          44.6               12.2 +/-    0.50      16.5 +/-    0.50  0.100 / 0.150
G07     268.8          24.5               10.2 +/-    2.26      20.1 +/-    2.26  0.110 / 0.180
G08     154.6          10.1              -13.5 +/-   31.47     -37.6 +/-   31.47  0.150 / 0.530
G09     319.1          46.5               10.6 +/-    1.26      14.0 +/-    1.26  0.200 / 0.540
G16     61.1           56.9                9.7 +/-    1.09      11.3 +/-    1.09  0.040 / 0.040
G22     185.5          27.3               11.1 +/-    1.28      20.6 +/-    1.28  0.030 / 0.040
G23     346.2          72.4               10.6 +/-    0.66      11.0 +/-    0.66  0.060 / 0.060
G26     45.8           31.3                7.7 +/-    1.46      13.2 +/-    1.46  0.050 / 0.070
G27     122.7          20.0               12.5 +/-    0.87      27.5 +/-    0.87  0.050 / 0.050