PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-14:28:00
G01     83.6           32.7              -10.3 +/-    6.06     -17.2 +/-    6.06  0.270 / 0.000
G07     130.1          37.6                8.6 +/-    1.36      13.1 +/-    1.36  0.270 / 0.310
G11     61.5           34.7                6.3 +/-    1.68      10.1 +/-    1.68  0.050 / 0.110
G13     290.5          36.1               21.8 +/-    3.19      33.9 +/-    3.19  0.060 / 0.100
G15     314.0          10.5               -8.7 +/-    7.46     -24.1 +/-    7.46  0.030 / 0.020
G17     218.9          61.5               40.0 +/-    5.91      44.8 +/-    5.91  0.030 / 0.030
G19     217.1          33.8              -54.8 +/-   19.41     -88.9 +/-   19.41  0.030 / 0.070
G28     359.6          61.1                6.8 +/-    1.79       7.7 +/-    1.79  0.040 / 0.050
G30     114.7          74.2               -5.9 +/-    3.29      -6.1 +/-    3.29  0.050 / 0.040