PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-01:12:50
G08     271.5          20.4                9.5 +/-    1.83      20.7 +/-    1.83  0.160 / 0.170
G10     48.0           61.1               11.6 +/-    0.66      13.1 +/-    0.66  0.120 / 0.130
G11     314.1          14.7                7.4 +/-    1.86      18.6 +/-    1.86  0.040 / 0.020
G14     256.7          63.9               12.2 +/-    0.43      13.4 +/-    0.43  0.030 / 0.100
G18     85.6           40.4               10.2 +/-    0.73      14.8 +/-    0.73  0.280 / 0.250
G21     152.8          19.9               11.6 +/-    2.97      25.6 +/-    2.97  0.220 / 0.200
G24     43.1           15.6                7.9 +/-    2.05      19.2 +/-    2.05  0.190 / 0.350
G27     234.9          19.4               14.7 +/-    4.26      32.9 +/-    4.26  0.230 / 0.220
G31     180.8          22.7               14.2 +/-    2.51      29.4 +/-    2.51  0.050 / 0.050
G32     303.7          75.1               11.8 +/-    0.59      12.2 +/-    0.59  0.040 / 0.040