PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-00:58:10
G02     56.8           34.9                9.0 +/-    1.41      14.3 +/-    1.41  0.070 / 0.090
G05     62.9           63.0                8.6 +/-    0.34       9.6 +/-    0.34  0.070 / 0.070
G12     184.7          35.7               12.8 +/-    1.39      20.0 +/-    1.39  0.100 / 0.450
G13     131.1          12.7               15.6 +/-    2.49      40.9 +/-    2.49  0.100 / 0.400
G21     268.1          14.4               11.1 +/-    1.94      28.1 +/-    1.94  0.030 / 0.030
G25     243.5          54.3               10.1 +/-    2.17      12.1 +/-    2.17  0.040 / 0.030
G29     325.2          50.1                9.9 +/-    1.10      12.5 +/-    1.10  0.170 / 0.350