PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-17:58:10
G01     76.0           33.3               10.2 +/-    1.83      16.7 +/-    1.83  0.090 / 0.200
G07     134.8          35.3               12.2 +/-    1.09      19.3 +/-    1.09  0.140 / 0.200
G11     57.2           33.9               10.5 +/-    1.36      17.0 +/-    1.36  0.040 / 0.090
G13     280.0          37.8               11.7 +/-    1.98      17.7 +/-    1.98  0.060 / 0.060
G15     307.2          13.6                8.9 +/-    1.75      22.9 +/-    1.75  0.030 / 0.040
G17     226.4          62.9               13.5 +/-    1.04      14.9 +/-    1.04  0.040 / 0.030
G18     52.7           20.3               10.4 +/-    7.54      22.6 +/-    7.54  0.170 / 0.210
G19     221.2          36.1               13.4 +/-    1.74      20.9 +/-    1.74  0.250 / 0.220
G28     12.0           60.2               12.3 +/-    1.50      14.0 +/-    1.50  0.090 / 0.090
G30     130.3          65.8               12.7 +/-    0.38      13.7 +/-    0.38  0.080 / 0.110