PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-12:12:30
G02     256.9          79.7                4.3 +/-    0.34       4.4 +/-    0.34  0.050 / 0.190
G05     171.6          18.5                4.4 +/-    1.09      10.2 +/-    1.09  0.050 / 0.210
G06     39.3           58.3                3.2 +/-    0.32       3.6 +/-    0.32  0.060 / 0.140
G12     321.1          54.5                3.7 +/-    1.27       4.5 +/-    1.27  0.080 / 0.110
G17     75.3           18.5                3.0 +/-    1.02       6.9 +/-    1.02  0.090 / 0.090
G19     62.4           34.9                3.3 +/-    0.56       5.2 +/-    0.56  0.100 / 0.110
G24     243.0          32.8                5.4 +/-    1.10       8.9 +/-    1.10  0.040 / 0.050
G25     317.4          16.7                1.8 +/-    3.19       4.3 +/-    3.19  0.050 / 0.040