PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-22:12:30
G02     210.5          53.1               18.8 +/-    0.96      22.8 +/-    0.96  0.070 / 0.240
G06     101.0          80.4               16.7 +/-    0.65      16.9 +/-    0.65  0.070 / 0.220
G12     314.7          26.8               11.7 +/-    1.17      22.0 +/-    1.17  0.040 / 0.060
G17     51.0           36.9               13.0 +/-    0.58      20.0 +/-    0.58  0.050 / 0.070
G19     30.3           53.7               15.1 +/-    0.40      18.2 +/-    0.40  0.050 / 0.080
G24     274.5          42.6               15.4 +/-    0.69      21.6 +/-    0.69  0.060 / 0.070
G28     115.6          23.3               17.2 +/-    0.98      34.9 +/-    0.98  0.090 / 0.140