PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/25-00:43:10
G01     85.2           32.7                7.2 +/-    1.63      12.0 +/-    1.63  0.030 / 0.040
G07     129.1          42.1               11.3 +/-    0.66      15.8 +/-    0.66  0.040 / 0.040
G11     67.0           39.9                6.7 +/-    1.44       9.8 +/-    1.44  0.060 / 0.090
G13     290.4          36.6                7.2 +/-    2.10      11.1 +/-    2.10  0.080 / 0.090
G15     311.8          12.3                7.5 +/-    2.19      19.8 +/-    2.19  0.050 / 0.060
G17     218.4          55.8               10.0 +/-    1.10      11.8 +/-    1.10  0.050 / 0.030
G19     216.7          31.2               10.1 +/-    2.12      17.3 +/-    2.12  0.050 / 0.090
G28     358.7          61.3                7.3 +/-    0.78       8.2 +/-    0.78  0.060 / 0.120
G30     119.1          68.6               10.5 +/-    0.64      11.2 +/-    0.64  0.080 / 0.090