PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-06:57:40
G02     16.8           68.6                1.3 +/-    0.54       1.4 +/-    0.54  0.030 / 0.060
G05     157.2          45.3                5.7 +/-    0.96       7.7 +/-    0.96  0.030 / 0.050
G06     44.5           32.9                1.6 +/-    1.09       2.7 +/-    1.09  0.050 / 0.070
G12     278.3          78.3                2.9 +/-    0.63       3.0 +/-    0.63  0.040 / 0.120
G19     85.3           20.3                5.0 +/-    1.36      10.9 +/-    1.36  0.030 / 0.030
G24     221.1          15.3                4.6 +/-    2.15      11.3 +/-    2.15  0.030 / 0.030
G25     314.1          38.3                1.4 +/-    1.49       2.1 +/-    1.49  0.050 / 0.070
G29     295.1          16.9                3.4 +/-    3.27       8.1 +/-    3.27  0.040 / 0.080