PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-04:27:50
G01     110.1          23.7                8.1 +/-    1.08      16.3 +/-    1.08  0.080 / 0.170
G07     103.4          58.5                7.2 +/-    0.64       8.2 +/-    0.64  0.070 / 0.140
G08     41.8           20.6                3.6 +/-    3.08       7.8 +/-    3.08  0.030 / 0.040
G09     173.8          14.6                4.9 +/-    1.66      12.3 +/-    1.66  0.030 / 0.040
G11     91.0           42.4                6.1 +/-    0.92       8.5 +/-    0.92  0.030 / 0.020
G13     311.8          27.0                4.2 +/-    1.38       7.9 +/-    1.38  0.030 / 0.020
G17     203.4          37.2                6.1 +/-    0.90       9.3 +/-    0.90  0.050 / 0.080
G28     307.6          59.5                5.5 +/-    0.94       6.3 +/-    0.94  0.060 / 0.070
G30     4.4            75.6                6.6 +/-    0.52       6.7 +/-    0.52  0.050 / 0.050