PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-01:27:40
G10     262.1          35.2               12.8 +/-    0.65      20.3 +/-    0.65  0.130 / 0.180
G13     44.3           21.8                8.7 +/-    1.81      18.3 +/-    1.81  0.150 / 0.170
G15     66.9           53.8               10.3 +/-    1.09      12.4 +/-    1.09  0.050 / 0.030
G16     282.1          13.7                8.8 +/-    1.85      22.7 +/-    1.85  0.040 / 0.030
G20     276.2          47.4               14.1 +/-    1.65      18.4 +/-    1.65  0.190 / 0.250
G21     350.6          68.3               10.9 +/-    0.72      11.6 +/-    0.72  0.230 / 0.210
G24     123.1          11.6               13.5 +/-    1.83      36.4 +/-    1.83  0.250 / 0.240
G27     320.5          15.1                7.8 +/-    1.66      19.3 +/-    1.66  0.160 / 0.350
G29     167.8          37.2               12.2 +/-    1.50      18.7 +/-    1.50  0.190 / 0.500