PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/26-17:12:50
G02     81.5           14.7               13.8 +/-    1.91      34.6 +/-    1.91  0.040 / 0.070
G05     44.5           38.0               12.3 +/-    0.75      18.5 +/-    0.75  0.040 / 0.060
G13     104.6          32.1               17.1 +/-    1.29      28.8 +/-    1.29  0.040 / 0.040
G15     146.6          35.3               18.9 +/-    2.08      29.8 +/-    2.08  0.040 / 0.040
G18     229.3          25.4               18.9 +/-    3.34      36.7 +/-    3.34  0.100 / 0.300
G20     297.8          85.4               13.1 +/-    0.37      13.1 +/-    0.37  0.110 / 0.330
G21     295.3          36.1               11.2 +/-    0.93      17.5 +/-    0.93  0.050 / 0.120
G25     209.6          27.9               17.8 +/-    2.00      32.6 +/-    2.00  0.050 / 0.120
G26     312.3          14.4                8.7 +/-    2.81      22.0 +/-    2.81  0.100 / 0.210
G29     59.0           85.0               13.0 +/-    0.75      13.1 +/-    0.75  0.090 / 0.160