PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-17:28:10
G02     235.6          72.3                9.4 +/-    0.49       9.8 +/-    0.49  0.090 / 0.090
G05     172.7          13.9               10.1 +/-    2.02      25.9 +/-    2.02  0.140 / 0.100
G06     41.1           60.2                7.6 +/-    0.50       8.7 +/-    0.50  0.050 / 0.110
G12     320.9          48.4                8.4 +/-    0.69      10.8 +/-    0.69  0.060 / 0.100
G17     66.9           26.3                6.6 +/-    1.25      12.5 +/-    1.25  0.060 / 0.080
G19     55.5           38.7                6.7 +/-    1.02      10.0 +/-    1.02  0.050 / 0.070
G24     248.3          35.8               11.5 +/-    1.59      18.0 +/-    1.59  0.030 / 0.040