PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-17:58:10
G02     13.2           69.3               17.1 +/-    0.67      18.1 +/-    0.67  0.040 / 0.060
G05     163.0          44.1               19.6 +/-    0.55      26.7 +/-    0.55  0.050 / 0.060
G06     46.5           28.5               12.4 +/-    1.30      22.4 +/-    1.30  0.230 / 0.270
G12     252.7          79.6               12.8 +/-    0.44      13.0 +/-    0.44  0.130 / 0.260
G19     88.6           17.3               14.5 +/-    1.37      34.0 +/-    1.37  0.030 / 0.020
G20     197.4          12.4               18.4 +/-   18.68      48.7 +/-   18.68  0.030 / 0.020
G24     219.8          13.6               16.3 +/-    5.37      41.8 +/-    5.37  0.120 / 0.340
G25     310.8          45.2               13.9 +/-    1.10      18.7 +/-    1.10  0.140 / 0.400
G29     297.8          20.0               14.5 +/-    1.66      32.0 +/-    1.66  0.040 / 0.050