PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/30-14:58:10
G02     85.0           11.5                9.1 +/-    1.60      24.5 +/-    1.60  0.060 / 0.080
G05     44.8           32.6                8.1 +/-    1.20      13.5 +/-    1.20  0.050 / 0.090
G13     99.5           33.9                9.8 +/-    1.03      16.0 +/-    1.03  0.050 / 0.090
G15     142.5          39.1               12.6 +/-    0.59      18.6 +/-    0.59  0.050 / 0.080
G18     232.0          29.6               10.4 +/-    1.62      18.4 +/-    1.62  0.130 / 0.260
G20     330.9          84.0                9.3 +/-    0.55       9.3 +/-    0.55  0.240 / 0.260
G21     300.3          40.1                8.2 +/-    3.64      11.9 +/-    3.64  0.040 / 0.030
G25     208.2          24.7                9.4 +/-    1.56      18.5 +/-    1.56  0.030 / 0.030
G26     307.3          17.0                7.6 +/-    1.28      17.9 +/-    1.28  0.130 / 0.160
G29     99.9           84.7                9.2 +/-    0.53       9.2 +/-    0.53  0.170 / 0.110