PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-04:13:00
G01     318.1          19.6                6.6 +/-    5.02      14.6 +/-    5.02  0.200 / 0.300
G08     254.1          12.2                6.8 +/-    5.64      18.1 +/-    5.64  0.100 / 0.250
G10     81.5           53.2                3.6 +/-    1.61       4.4 +/-    1.61  0.160 / 0.260
G11     299.6          25.8                5.8 +/-    3.41      11.1 +/-    3.41  0.160 / 0.310
G14     308.2          71.6                4.7 +/-    0.52       4.9 +/-    0.52  0.040 / 0.050
G18     102.7          29.1                2.5 +/-    1.47       4.4 +/-    1.47  0.040 / 0.050
G22     301.3          12.2                7.4 +/-    3.47      19.6 +/-    3.47  0.060 / 0.060
G31     176.1          43.5                5.9 +/-    2.23       8.1 +/-    2.23  0.070 / 0.060
G32     7.5            67.0                4.4 +/-    1.21       4.7 +/-    1.21  0.040 / 0.030