PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/07-06:27:50
G01     109.7          24.0                4.7 +/-    1.40       9.4 +/-    1.40  0.040 / 0.030
G07     103.8          58.7                6.4 +/-    0.47       7.4 +/-    0.47  0.030 / 0.020
G08     41.7           20.2                2.6 +/-    0.60       5.7 +/-    0.60  0.030 / 0.030
G09     172.9          12.9                3.7 +/-    3.12       9.7 +/-    3.12  0.030 / 0.040
G11     90.4           42.4                7.4 +/-    0.38      10.3 +/-    0.38  0.070 / 0.210
G13     311.4          27.4                2.0 +/-    0.86       3.7 +/-    0.86  0.070 / 0.150
G17     203.7          37.6                5.7 +/-    2.40       8.6 +/-    2.40  0.070 / 0.190
G18     80.6           23.3                4.0 +/-    1.11       8.2 +/-    1.11  0.060 / 0.150
G28     309.4          59.8                4.6 +/-    0.63       5.2 +/-    0.63  0.060 / 0.220
G30     5.4            75.9                5.9 +/-    0.66       6.1 +/-    0.66  0.070 / 0.170