PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-04:57:40
G01     271.0          41.1                7.1 +/-    1.21      10.1 +/-    1.21  0.040 / 0.050
G03     315.6          27.8                2.8 +/-    1.54       5.1 +/-    1.54  0.040 / 0.040
G10     129.6          16.8                5.7 +/-    1.42      13.5 +/-    1.42  0.050 / 0.080
G11     249.6          20.1                8.8 +/-    1.34      19.3 +/-    1.34  0.060 / 0.080
G14     41.7           51.2                3.1 +/-    0.52       3.8 +/-    0.52  0.040 / 0.060
G18     234.0          39.2                9.6 +/-    1.21      14.1 +/-    1.21  0.050 / 0.060
G22     314.0          51.0                4.9 +/-    1.17       6.0 +/-    1.17  0.100 / 0.220
G25     51.9           16.3                2.1 +/-    1.15       5.1 +/-    1.15  0.090 / 0.170
G31     53.7           71.5                6.1 +/-    0.69       6.4 +/-    0.69  0.050 / 0.130
G32     65.1           31.0                3.8 +/-    0.38       6.6 +/-    0.38  0.050 / 0.100