PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-13:57:30
G03     208.1          59.1               11.0 +/-    0.69      12.7 +/-    0.69  0.150 / 0.230
G07     256.4          18.9                8.5 +/-    1.88      19.3 +/-    1.88  0.140 / 0.190
G09     308.2          24.3                7.4 +/-    2.04      14.7 +/-    2.04  0.040 / 0.050
G16     112.8          63.9               11.0 +/-    0.46      12.1 +/-    0.46  0.040 / 0.040
G22     186.3          42.0               11.9 +/-    2.39      16.8 +/-    2.39  0.060 / 0.080
G23     327.5          57.4                7.6 +/-    0.67       8.8 +/-    0.67  0.060 / 0.070
G26     58.8           47.8                7.8 +/-    0.56      10.1 +/-    0.56  0.030 / 0.040
G31     57.4           12.8                7.4 +/-    0.69      19.4 +/-    0.69  0.040 / 0.050