PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-14:42:40
G01     78.1           33.3                8.0 +/-    0.92      13.2 +/-    0.92  0.030 / 0.030
G07     133.6          36.5                9.6 +/-    0.71      14.9 +/-    0.71  0.030 / 0.020
G11     57.9           34.1                8.3 +/-    2.08      13.4 +/-    2.08  0.060 / 0.060
G13     282.0          37.9                9.0 +/-    1.23      13.5 +/-    1.23  0.050 / 0.060
G15     310.0          12.2                6.1 +/-    1.61      16.3 +/-    1.61  0.060 / 0.080
G17     224.2          63.8               10.9 +/-    1.32      12.0 +/-    1.32  0.060 / 0.090
G18     53.8           20.7                7.8 +/-    5.69      16.9 +/-    5.69  0.060 / 0.110
G19     220.0          33.4               10.2 +/-    1.25      16.7 +/-    1.25  0.060 / 0.110
G28     8.3            60.6                9.5 +/-    1.80      10.8 +/-    1.80  0.350 / 0.330
G30     127.4          68.7               10.1 +/-    0.76      10.7 +/-    0.76  0.240 / 0.250