PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-15:57:50
G01     107.8          24.4               10.4 +/-    1.35      20.7 +/-    1.35  0.030 / 0.060
G07     107.9          54.2               11.7 +/-    0.61      14.1 +/-    0.61  0.030 / 0.060
G08     42.1           22.5                8.6 +/-    1.45      17.9 +/-    1.45  0.050 / 0.100
G09     175.8          16.4               12.1 +/-    2.09      29.2 +/-    2.09  0.040 / 0.080
G11     90.0           43.3               11.0 +/-    0.32      15.2 +/-    0.32  0.040 / 0.080
G13     310.3          28.7                9.9 +/-    1.29      17.8 +/-    1.29  0.040 / 0.090
G17     204.8          35.0               14.2 +/-    0.83      22.5 +/-    0.83  0.080 / 0.200
G18     80.5           23.8                9.2 +/-    0.93      18.5 +/-    0.93  0.090 / 0.170
G28     304.7          58.3               10.9 +/-    0.75      12.6 +/-    0.75  0.070 / 0.170
G30     35.0           78.0               10.7 +/-    0.92      10.9 +/-    0.92  0.060 / 0.170