PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-18:28:00
G08     294.5          22.7               11.6 +/-    1.02      24.0 +/-    1.02  0.120 / 0.090
G10     3.4            63.0                8.1 +/-    0.96       8.9 +/-    0.96  0.100 / 0.080
G14     229.2          45.7               11.8 +/-    1.88      15.7 +/-    1.88  0.070 / 0.120
G18     63.8           50.5                9.2 +/-    0.83      11.5 +/-    0.83  0.070 / 0.110
G21     144.7          35.9               12.3 +/-    0.80      19.2 +/-    0.80  0.040 / 0.020
G24     58.1           26.9                8.4 +/-    1.55      15.8 +/-    1.55  0.030 / 0.030
G27     254.1          32.0               11.5 +/-    2.27      19.4 +/-    2.27  0.050 / 0.090
G32     243.4          65.8               10.4 +/-    0.66      11.3 +/-    0.66  0.050 / 0.080