PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/22-00:12:50
G02     87.8           12.2               10.9 +/-    2.48      28.9 +/-    2.48  0.110 / 0.250
G05     45.5           29.1                7.8 +/-    0.93      13.8 +/-    0.93  0.080 / 0.220
G13     91.9           36.1               10.5 +/-    0.59      16.3 +/-    0.59  0.060 / 0.090
G15     141.9          42.7               13.1 +/-    0.93      18.2 +/-    0.93  0.070 / 0.080
G18     235.8          31.6               12.1 +/-    1.77      20.5 +/-    1.77  0.030 / 0.030
G20     18.4           76.0               10.8 +/-    0.84      11.1 +/-    0.84  0.020 / 0.030
G21     302.3          39.8                9.9 +/-    1.19      14.5 +/-    1.19  0.110 / 0.220
G25     201.4          17.3               14.0 +/-    2.23      32.8 +/-    2.23  0.110 / 0.230
G26     300.2          19.4               10.2 +/-    2.81      22.7 +/-    2.81  0.060 / 0.120
G29     136.1          82.9               10.9 +/-    0.96      10.9 +/-    0.96  0.040 / 0.110