PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-14:43:10
G01     74.6           33.0               10.5 +/-    1.04      17.3 +/-    1.04  0.050 / 0.100
G07     135.2          31.0               11.7 +/-    1.75      20.1 +/-    1.75  0.050 / 0.120
G11     55.1           30.3                9.7 +/-    0.91      16.9 +/-    0.91  0.070 / 0.110
G13     281.3          37.0               11.2 +/-    0.99      17.1 +/-    0.99  0.070 / 0.100
G15     308.2          13.1                8.4 +/-    2.23      21.9 +/-    2.23  0.030 / 0.040
G17     228.6          68.7               10.7 +/-    0.92      11.4 +/-    0.92  0.030 / 0.040
G19     221.8          40.8               10.6 +/-    0.86      15.2 +/-    0.86  0.040 / 0.050
G28     13.6           59.9                9.4 +/-    0.42      10.7 +/-    0.42  0.040 / 0.050
G30     129.7          67.5                9.9 +/-    0.50      10.6 +/-    0.50  0.090 / 0.110