PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-17:42:30
G02     353.1          76.4               14.1 +/-    0.69      14.4 +/-    0.69  0.080 / 0.080
G05     167.6          34.5               18.3 +/-    0.72      29.3 +/-    0.72  0.060 / 0.090
G06     43.1           36.3               12.1 +/-    1.72      18.8 +/-    1.72  0.030 / 0.030
G12     299.6          75.8               14.7 +/-    0.80      15.1 +/-    0.80  0.020 / 0.030
G19     80.9           22.6               12.4 +/-    2.55      25.6 +/-    2.55  0.250 / 0.290
G24     226.2          19.9               17.1 +/-    2.23      37.8 +/-    2.23  0.120 / 0.330
G25     315.5          37.1               15.6 +/-    1.15      23.8 +/-    1.15  0.050 / 0.080
G29     291.1          14.2               15.4 +/-    1.40      39.1 +/-    1.40  0.040 / 0.080