PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-17:12:40
G02     59.3           34.2                7.0 +/-    0.73      11.2 +/-    0.73  0.050 / 0.070
G05     58.1           62.9                8.5 +/-    0.61       9.4 +/-    0.61  0.060 / 0.050
G12     182.5          28.7               11.0 +/-    1.61      19.7 +/-    1.61  0.050 / 0.120
G13     126.2          16.5               11.2 +/-    1.66      26.9 +/-    1.66  0.120 / 0.130
G15     166.4          11.5               12.1 +/-    3.26      32.6 +/-    3.26  0.090 / 0.280
G21     273.1          18.7                8.3 +/-    2.91      18.9 +/-    2.91  0.130 / 0.240
G25     229.7          49.9               11.3 +/-    1.51      14.2 +/-    1.51  0.030 / 0.030
G29     329.3          55.9                7.4 +/-    0.63       8.8 +/-    0.63  0.030 / 0.030