PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-19:12:50
G02     22.2           63.4                7.7 +/-    1.02       8.5 +/-    1.02  0.040 / 0.050
G05     150.4          55.0               11.3 +/-    0.55      13.4 +/-    0.55  0.030 / 0.050
G06     50.4           19.9                7.5 +/-    1.59      16.5 +/-    1.59  0.030 / 0.030
G12     199.5          73.5                9.6 +/-    0.85       9.9 +/-    0.85  0.030 / 0.030
G19     92.5           17.2               10.7 +/-    0.96      25.2 +/-    0.96  0.050 / 0.080
G25     305.9          48.6               11.4 +/-    0.86      14.6 +/-    0.86  0.060 / 0.080
G29     301.2          21.2               10.7 +/-    3.20      22.8 +/-    3.20  0.040 / 0.050