PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-15:28:00
G01     85.0           32.7               10.0 +/-    1.90      16.5 +/-    1.90  0.020 / 0.030
G07     129.3          41.8               11.5 +/-    1.06      16.3 +/-    1.06  0.020 / 0.020
G11     63.5           37.6                9.7 +/-    1.14      14.7 +/-    1.14  0.070 / 0.150
G13     289.3          37.2               13.7 +/-    1.69      20.8 +/-    1.69  0.080 / 0.150
G17     218.1          57.5               11.8 +/-    1.03      13.7 +/-    1.03  0.040 / 0.050
G18     59.3           22.7                8.4 +/-    2.11      17.3 +/-    2.11  0.030 / 0.050
G19     216.9          28.5               11.7 +/-    1.91      21.2 +/-    1.91  0.070 / 0.100
G28     357.5          61.4               10.3 +/-    0.91      11.5 +/-    0.91  0.060 / 0.090
G30     116.0          73.4               12.1 +/-    0.49      12.5 +/-    0.49  0.060 / 0.080