PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-09:13:30
G01     124.8          13.4                5.1 +/-    3.33      13.1 +/-    3.33  0.040 / 0.070
G07     65.1           67.8                6.1 +/-    0.41       6.6 +/-    0.41  0.040 / 0.080
G08     48.0           35.8                3.4 +/-    0.86       5.3 +/-    0.86  0.060 / 0.090
G09     176.7          32.0                7.4 +/-    1.09      12.5 +/-    1.09  0.060 / 0.110
G11     113.6          35.7                8.1 +/-    0.75      12.7 +/-    0.75  0.030 / 0.030
G13     321.1          12.0                1.3 +/-    8.48       3.5 +/-    8.48  0.030 / 0.030
G17     199.6          19.7                6.1 +/-    1.70      13.5 +/-    1.70  0.050 / 0.090
G28     281.4          54.5                6.0 +/-    0.60       7.2 +/-    0.60  0.040 / 0.080
G30     335.2          61.8                5.0 +/-    0.45       5.5 +/-    0.45  0.100 / 0.300