PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-16:57:50
G02     58.8           33.2                9.4 +/-    0.70      15.5 +/-    0.70  0.100 / 0.270
G05     63.5           65.2               10.7 +/-    0.56      11.7 +/-    0.56  0.120 / 0.270
G12     186.1          34.6               11.9 +/-    1.10      19.0 +/-    1.10  0.030 / 0.030
G13     130.8          14.2               14.4 +/-    2.48      36.6 +/-    2.48  0.030 / 0.040
G15     164.1          11.1                9.9 +/-   28.25      26.9 +/-   28.25  0.060 / 0.080
G20     207.2          58.2               13.9 +/-    1.34      16.0 +/-    1.34  0.100 / 0.080
G21     270.8          18.5               10.8 +/-    2.07      24.6 +/-    2.07  0.060 / 0.060
G25     235.3          52.4               13.1 +/-    0.80      16.1 +/-    0.80  0.040 / 0.050
G29     332.1          58.4                9.5 +/-    0.60      11.0 +/-    0.60  0.170 / 0.520