PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-12:57:50
G01     124.9          13.2                5.9 +/-    5.57      15.3 +/-    5.57  0.070 / 0.080
G07     66.9           67.0                6.7 +/-    1.57       7.3 +/-    1.57  0.070 / 0.090
G08     48.1           35.8                2.1 +/-   11.68       3.3 +/-   11.68  0.320 / 0.520
G09     176.1          31.7                6.2 +/-    1.15      10.5 +/-    1.15  0.190 / 0.290
G11     112.6          35.3                7.9 +/-    3.49      12.5 +/-    3.49  0.040 / 0.030
G13     321.3          11.7                1.4 +/-   14.45       3.8 +/-   14.45  0.030 / 0.030
G17     199.5          19.5                8.7 +/-   17.88      19.3 +/-   17.88  0.030 / 0.030
G28     280.4          54.1              -16.7 +/-   46.12     -20.1 +/-   46.12  0.030 / 0.030
G30     333.1          60.4                0.2 +/-    9.34       0.2 +/-    9.34  0.100 / 0.270