PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-16:27:50
G02     83.1           13.3               12.7 +/-    2.37      32.9 +/-    2.37  0.030 / 0.060
G05     44.6           35.7               10.5 +/-    0.99      16.5 +/-    0.99  0.050 / 0.050
G13     102.4          32.9               15.3 +/-    0.88      25.2 +/-    0.88  0.110 / 0.100
G15     144.8          37.0               18.3 +/-    1.96      28.0 +/-    1.96  0.090 / 0.090
G18     230.5          27.2               17.3 +/-    2.28      32.2 +/-    2.28  0.040 / 0.030
G20     316.6          85.0               14.1 +/-    0.60      14.1 +/-    0.60  0.040 / 0.030
G21     297.3          37.7               11.5 +/-    2.06      17.4 +/-    2.06  0.090 / 0.320
G25     208.9          26.4               19.6 +/-    2.09      37.0 +/-    2.09  0.090 / 0.240
G26     310.3          15.5                8.0 +/-    1.78      19.7 +/-    1.78  0.050 / 0.110
G29     84.1           84.7               13.9 +/-    0.30      14.0 +/-    0.30  0.050 / 0.120