PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-01:28:10
G07     309.3          48.4                6.4 +/-    1.70       8.3 +/-    1.70  0.120 / 0.210
G08     123.8          41.5                9.7 +/-    0.79      13.8 +/-    0.79  0.100 / 0.250
G09     296.7          81.9                4.5 +/-    0.66       4.6 +/-    0.66  0.070 / 0.180
G16     42.1           24.5                1.8 +/-    1.31       3.5 +/-    1.31  0.070 / 0.180
G23     145.3          65.8                5.7 +/-    0.93       6.2 +/-    0.93  0.040 / 0.070
G27     81.9           38.1                6.1 +/-    0.30       9.1 +/-    0.30  0.050 / 0.070
G28     224.0          10.9               -3.2 +/-   17.85      -8.7 +/-   17.85  0.210 / 0.480
G30     285.5          21.1                4.0 +/-    2.79       8.7 +/-    2.79  0.280 / 0.580