PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-14:28:00
G01     101.7          28.1               10.3 +/-    1.56      18.8 +/-    1.56  0.030 / 0.030
G07     114.3          54.3                9.3 +/-    0.33      11.2 +/-    0.33  0.030 / 0.030
G08     41.6           15.4                6.4 +/-    1.30      15.8 +/-    1.30  0.050 / 0.070
G11     81.0           42.3                8.8 +/-    0.56      12.4 +/-    0.56  0.040 / 0.090
G13     305.1          31.8                9.0 +/-    1.58      15.3 +/-    1.58  0.030 / 0.050
G17     208.2          43.1                9.8 +/-    0.77      13.6 +/-    0.77  0.030 / 0.050
G18     74.4           24.6                8.1 +/-    0.41      16.0 +/-    0.41  0.060 / 0.130
G19     211.0          15.1                8.9 +/-    4.73      22.2 +/-    4.73  0.060 / 0.130
G28     328.1          61.6                7.3 +/-    0.71       8.2 +/-    0.71  0.050 / 0.130
G30     46.4           80.0                8.2 +/-    0.42       8.3 +/-    0.42  0.050 / 0.130