PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-14:58:00
G01     101.0          28.4               10.7 +/-    1.50      19.4 +/-    1.50  0.030 / 0.030
G07     115.1          53.8               10.2 +/-    0.29      12.3 +/-    0.29  0.030 / 0.040
G08     41.7           15.2                6.4 +/-    2.10      15.9 +/-    2.10  0.060 / 0.110
G11     80.4           42.3                9.5 +/-    0.52      13.4 +/-    0.52  0.060 / 0.130
G13     304.5          32.1                9.5 +/-    1.87      15.9 +/-    1.87  0.060 / 0.060
G17     208.6          43.4               12.1 +/-    0.75      16.7 +/-    0.75  0.040 / 0.060
G18     73.8           24.7                9.5 +/-    0.54      18.6 +/-    0.54  0.030 / 0.050
G19     211.2          15.8               11.7 +/-    3.41      28.4 +/-    3.41  0.030 / 0.060
G28     329.5          61.7                8.1 +/-    0.46       9.1 +/-    0.46  0.040 / 0.090
G30     51.4           80.0                8.7 +/-    0.82       8.9 +/-    0.82  0.050 / 0.080