PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-23:42:40
G01     119.3          17.3               10.8 +/-    1.10      25.4 +/-    1.10  0.070 / 0.070
G07     85.5           63.7                9.2 +/-    0.92      10.2 +/-    0.92  0.080 / 0.060
G08     44.4           29.8                6.7 +/-    1.21      11.7 +/-    1.21  0.030 / 0.030
G09     176.8          26.5                8.9 +/-    1.37      16.8 +/-    1.37  0.030 / 0.030
G11     105.1          40.1                9.9 +/-    1.52      14.3 +/-    1.52  0.080 / 0.250
G13     317.7          19.6                7.0 +/-    1.40      15.5 +/-    1.40  0.240 / 0.300
G17     200.4          26.2               10.2 +/-    1.86      19.4 +/-    1.86  0.110 / 0.120
G28     287.1          55.2                9.0 +/-    2.05      10.7 +/-    2.05  0.110 / 0.140
G30     344.5          68.0                7.9 +/-    0.48       8.4 +/-    0.48  0.070 / 0.150