PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-14:27:50
G01     54.2           28.0                7.5 +/-    0.89      13.6 +/-    0.89  0.050 / 0.050
G06     177.2          22.1                9.5 +/-    2.59      19.9 +/-    2.59  0.040 / 0.060
G07     144.6          16.8                9.9 +/-    1.21      23.6 +/-    1.21  0.050 / 0.090
G11     45.6           18.1                6.7 +/-    0.80      15.4 +/-    0.80  0.060 / 0.100
G13     255.3          32.9                9.3 +/-    1.07      15.3 +/-    1.07  0.100 / 0.260
G15     291.4          15.1                8.3 +/-    0.92      20.6 +/-    0.92  0.120 / 0.220
G17     292.9          79.4               10.0 +/-    0.85      10.1 +/-    0.85  0.090 / 0.170
G19     238.3          52.5               10.6 +/-    1.21      13.0 +/-    1.21  0.070 / 0.200
G28     44.9           54.8                8.6 +/-    0.58      10.3 +/-    0.58  0.040 / 0.050
G30     147.8          47.7               10.0 +/-    0.67      13.0 +/-    0.67  0.040 / 0.060