PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-15:58:10
G02     17.7           67.3               10.3 +/-    0.31      11.1 +/-    0.31  0.160 / 0.410
G05     160.2          46.5               14.5 +/-    1.22      19.2 +/-    1.22  0.100 / 0.470
G06     46.6           28.5                9.1 +/-    0.63      16.4 +/-    0.63  0.080 / 0.080
G12     249.5          79.2               10.9 +/-    0.50      11.0 +/-    0.50  0.060 / 0.070
G19     89.5           16.7               12.0 +/-    2.43      28.7 +/-    2.43  0.020 / 0.030
G20     197.7          12.9               14.0 +/-    1.63      36.7 +/-    1.63  0.020 / 0.070
G24     218.9          12.8               13.0 +/-    2.47      34.0 +/-    2.47  0.200 / 0.420
G25     310.5          45.0               11.8 +/-    2.64      15.9 +/-    2.64  0.090 / 0.410
G29     299.4          22.1               11.6 +/-    2.00      24.3 +/-    2.00  0.040 / 0.040