PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-20:12:30
G02     210.4          51.9               16.9 +/-    0.66      20.8 +/-    0.66  0.100 / 0.190
G06     98.0           79.9               12.9 +/-    0.59      13.1 +/-    0.59  0.070 / 0.180
G12     314.5          26.6               11.5 +/-    1.20      21.6 +/-    1.20  0.070 / 0.060
G17     49.7           38.2               11.3 +/-    1.14      17.0 +/-    1.14  0.060 / 0.050
G19     30.1           53.8               11.2 +/-    0.99      13.5 +/-    0.99  0.080 / 0.080
G24     276.0          42.4               16.4 +/-    1.74      23.0 +/-    1.74  0.080 / 0.060
G28     115.0          24.2               13.5 +/-    2.23      26.9 +/-    2.23  0.150 / 0.190