PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-20:43:00
G07     39.5           68.3               10.8 +/-    0.64      11.5 +/-    0.64  0.090 / 0.250
G08     57.6           44.6                9.2 +/-    1.00      12.5 +/-    1.00  0.090 / 0.220
G09     179.7          46.7               12.6 +/-    1.71      16.6 +/-    1.71  0.080 / 0.070
G11     125.5          30.6               14.2 +/-    1.18      24.5 +/-    1.18  0.070 / 0.060
G18     108.7          12.1               14.1 +/-    2.31      37.5 +/-    2.31  0.080 / 0.370
G23     160.9          17.3               13.3 +/-    1.03      31.3 +/-    1.03  0.110 / 0.340
G27     40.0           16.4                8.2 +/-    2.47      19.8 +/-    2.47  0.050 / 0.090
G28     260.1          44.4               10.0 +/-    1.58      13.6 +/-    1.58  0.050 / 0.100
G30     323.6          53.7               11.3 +/-    0.72      13.6 +/-    0.72  0.130 / 0.290