PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-17:13:00
G02     19.7           64.7                6.4 +/-    0.27       7.0 +/-    0.27  0.030 / 0.040
G05     152.1          54.0                8.9 +/-    0.56      10.8 +/-    0.56  0.040 / 0.050
G06     50.2           20.0                7.9 +/-    2.14      17.4 +/-    2.14  0.060 / 0.040
G12     196.4          73.3                6.2 +/-    0.32       6.4 +/-    0.32  0.030 / 0.030
G19     91.7           18.0                8.2 +/-    2.54      18.9 +/-    2.54  0.100 / 0.110
G25     306.2          48.6                6.6 +/-    2.61       8.4 +/-    2.61  0.130 / 0.120
G29     300.7          20.7                7.4 +/-    1.00      15.9 +/-    1.00  0.190 / 0.120