PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-22:12:30
G02     28.5           59.2                9.9 +/-    0.59      11.3 +/-    0.59  0.050 / 0.050
G05     144.2          58.9               12.3 +/-    0.94      14.1 +/-    0.94  0.040 / 0.050
G06     52.1           17.6                8.3 +/-    0.93      19.4 +/-    0.93  0.040 / 0.040
G12     199.1          70.7               11.0 +/-    0.70      11.5 +/-    0.70  0.030 / 0.040
G19     96.0           14.2               10.8 +/-    1.10      27.5 +/-    1.10  0.050 / 0.070
G25     302.4          50.7               10.7 +/-    0.67      13.4 +/-    0.67  0.050 / 0.060
G29     304.0          24.0               10.5 +/-    1.33      21.0 +/-    1.33  0.050 / 0.070