PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-23:28:10
G02     214.6          59.7               19.0 +/-    0.36      21.6 +/-    0.36  0.050 / 0.120
G06     61.0           75.2               15.9 +/-    0.58      16.4 +/-    0.58  0.040 / 0.100
G12     318.2          35.0               13.2 +/-    0.94      21.0 +/-    0.94  0.050 / 0.060
G17     53.9           36.4               13.9 +/-    1.47      21.5 +/-    1.47  0.040 / 0.050
G19     36.3           51.0               13.8 +/-    0.64      17.2 +/-    0.64  0.110 / 0.280
G24     267.2          41.9               17.3 +/-    1.24      24.4 +/-    1.24  0.130 / 0.310
G28     121.8          14.4               20.1 +/-    2.06      50.7 +/-    2.06  0.090 / 0.100