PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-09:58:00
G01     90.9           31.6                6.5 +/-    0.91      11.1 +/-    0.91  0.070 / 0.050
G07     125.2          45.2                8.4 +/-    0.56      11.3 +/-    0.56  0.050 / 0.050
G11     67.8           39.3                5.7 +/-    1.10       8.3 +/-    1.10  0.030 / 0.020
G13     294.9          36.2                4.7 +/-    2.01       7.3 +/-    2.01  0.020 / 0.030
G17     213.5          54.9                8.2 +/-    0.74       9.8 +/-    0.74  0.080 / 0.080
G18     62.8           23.3                5.0 +/-    1.47      10.2 +/-    1.47  0.070 / 0.090
G19     214.6          22.5                5.3 +/-    1.94      10.9 +/-    1.94  0.070 / 0.110
G28     345.7          61.8                5.8 +/-    0.63       6.5 +/-    0.63  0.080 / 0.110
G30     98.2           78.1                6.4 +/-    0.36       6.5 +/-    0.36  0.100 / 0.140