PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-21:28:10
G01     125.6          12.9               16.0 +/-    4.17      41.9 +/-    4.17  0.170 / 0.290
G07     57.1           69.4               14.2 +/-    0.40      15.1 +/-    0.40  0.160 / 0.320
G08     51.1           41.7               12.2 +/-    0.89      17.3 +/-    0.89  0.120 / 0.100
G09     178.7          35.0               15.4 +/-    0.91      24.5 +/-    0.91  0.090 / 0.070
G11     119.3          35.8               14.5 +/-    0.90      22.6 +/-    0.90  0.150 / 0.320
G13     320.9          12.6               11.1 +/-    7.50      29.2 +/-    7.50  0.100 / 0.350
G17     201.3          13.9               16.6 +/-    2.62      42.3 +/-    2.62  0.080 / 0.090
G18     11.5           -20.9              28.4 +/-    2.10      61.1 +/-    2.10  0.080 / 0.100
G28     280.0          54.2               15.3 +/-    2.61      18.4 +/-    2.61  0.060 / 0.090
G30     340.1          64.3               14.1 +/-    0.34      15.5 +/-    0.34  0.050 / 0.100