PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-07:42:40
G01     79.4           33.2                5.6 +/-    0.63       9.2 +/-    0.63  0.030 / 0.050
G07     132.7          36.6                8.2 +/-    0.63      12.6 +/-    0.63  0.040 / 0.050
G11     59.6           34.7                4.7 +/-    0.79       7.4 +/-    0.79  0.040 / 0.070
G13     285.5          36.9                4.9 +/-    1.90       7.5 +/-    1.90  0.050 / 0.070
G15     308.6          13.6                1.5 +/-    1.33       4.0 +/-    1.33  0.070 / 0.220
G17     223.1          64.1               10.0 +/-    1.10      11.0 +/-    1.10  0.080 / 0.220
G19     219.3          36.8                6.9 +/-    1.20      10.7 +/-    1.20  0.040 / 0.030
G28     7.7            60.5                3.8 +/-    0.43       4.3 +/-    0.43  0.040 / 0.050
G30     125.1          68.1                6.4 +/-    0.58       6.8 +/-    0.58  0.060 / 0.100