PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-01:42:50
G08     294.5          23.3                8.1 +/-    1.25      16.5 +/-    1.25  0.070 / 0.100
G10     2.9            62.9                7.1 +/-    0.37       7.9 +/-    0.37  0.080 / 0.120
G14     227.8          43.0               14.0 +/-    1.24      19.4 +/-    1.24  0.040 / 0.080
G20     357.4          65.6               20.9 +/-    0.51      22.7 +/-    0.51  0.060 / 0.080
G21     145.5          43.7               10.4 +/-    1.12      14.2 +/-    1.12  0.060 / 0.120
G24     56.8           25.5                7.6 +/-    0.79      14.7 +/-    0.79  0.050 / 0.090
G27     257.1          32.8               10.8 +/-    2.63      17.9 +/-    2.63  0.030 / 0.040
G32     243.1          67.9               10.4 +/-    0.93      11.1 +/-    0.93  0.030 / 0.040