PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-00:43:00
G02     55.4           36.1               12.8 +/-    1.37      19.8 +/-    1.37  0.040 / 0.060
G05     66.0           64.3               13.4 +/-    0.57      14.7 +/-    0.57  0.070 / 0.060
G12     184.9          37.4               16.8 +/-    1.28      25.5 +/-    1.28  0.170 / 0.260
G13     132.3          11.6               18.9 +/-    1.79      50.9 +/-    1.79  0.220 / 0.240
G21     266.8          13.4               16.4 +/-   11.43      42.3 +/-   11.43  0.040 / 0.030
G25     246.3          55.2               15.9 +/-    0.91      18.9 +/-    0.91  0.040 / 0.030
G29     324.2          48.5               13.8 +/-    0.50      17.8 +/-    0.50  0.040 / 0.050