PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-18:27:50
G02     18.4           66.4               12.1 +/-    0.44      13.1 +/-    0.44  0.090 / 0.300
G05     160.9          48.0               14.4 +/-    0.86      18.7 +/-    0.86  0.140 / 0.270
G06     48.2           25.2               10.3 +/-    0.69      20.1 +/-    0.69  0.030 / 0.040
G12     229.7          78.2               11.1 +/-    0.66      11.3 +/-    0.66  0.030 / 0.040
G19     91.8           15.0               11.3 +/-    1.41      28.2 +/-    1.41  0.040 / 0.080
G20     197.3          16.0               15.8 +/-    1.96      38.4 +/-    1.96  0.050 / 0.060
G24     217.2          11.1               13.8 +/-    1.89      37.6 +/-    1.89  0.040 / 0.050
G25     307.6          48.6               13.4 +/-    0.80      17.2 +/-    0.80  0.040 / 0.050
G29     300.5          22.4               12.0 +/-    1.70      25.0 +/-    1.70  0.030 / 0.060