PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-15:57:30
G02     320.0          79.1                8.7 +/-    0.34       8.8 +/-    0.34  0.050 / 0.110
G05     166.6          32.1               10.6 +/-    0.67      17.8 +/-    0.67  0.070 / 0.100
G06     41.9           38.8                6.3 +/-    0.52       9.3 +/-    0.52  0.070 / 0.130
G12     308.6          75.2                6.8 +/-    0.80       7.0 +/-    0.80  0.070 / 0.130
G17     86.9           10.0                7.0 +/-    1.49      19.6 +/-    1.49  0.030 / 0.040
G19     72.5           31.0                8.3 +/-    0.60      14.3 +/-    0.60  0.040 / 0.040
G24     225.8          21.8               12.7 +/-    2.04      26.8 +/-    2.04  0.040 / 0.060
G25     316.8          31.1                7.1 +/-    1.00      12.1 +/-    1.00  0.040 / 0.060