PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-06:12:30
G01     125.3          13.1                5.4 +/-    3.03      14.2 +/-    3.03  0.040 / 0.060
G07     61.6           68.5                4.3 +/-    0.68       4.6 +/-    0.68  0.050 / 0.060
G08     48.6           36.9                2.5 +/-    1.03       3.9 +/-    1.03  0.090 / 0.230
G09     177.8          33.8                7.9 +/-    2.03      12.8 +/-    2.03  0.080 / 0.220
G11     115.5          35.6                8.1 +/-    0.71      12.6 +/-    0.71  0.030 / 0.040
G13     321.1          11.9               -0.3 +/-   11.05      -0.9 +/-   11.05  0.030 / 0.030
G17     199.8          18.5                5.7 +/-    1.74      13.1 +/-    1.74  0.040 / 0.070
G28     280.7          54.5                5.6 +/-    0.76       6.7 +/-    0.76  0.050 / 0.070
G30     336.6          62.5                4.0 +/-    0.66       4.5 +/-    0.66  0.070 / 0.090