PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/11-14:58:00
G02     57.4           34.1                6.7 +/-    1.45      10.7 +/-    1.45  0.030 / 0.020
G05     66.5           65.7                7.6 +/-    0.48       8.2 +/-    0.48  0.030 / 0.030
G12     187.0          37.5               10.4 +/-    0.95      15.8 +/-    0.95  0.150 / 0.250
G13     132.4          12.6               12.3 +/-    2.87      32.4 +/-    2.87  0.190 / 0.230
G20     206.6          54.6               11.1 +/-    0.33      13.3 +/-    0.33  0.040 / 0.040
G21     269.4          18.2                7.6 +/-    0.89      17.4 +/-    0.89  0.030 / 0.040
G25     240.7          54.1                9.5 +/-    3.68      11.4 +/-    3.68  0.040 / 0.080
G29     330.8          56.6                6.7 +/-    0.54       7.9 +/-    0.54  0.060 / 0.070