PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-02:28:10
G02     212.7          58.7                6.6 +/-    0.62       7.5 +/-    0.62  0.090 / 0.090
G06     71.0           78.0                4.7 +/-    0.63       4.8 +/-    0.63  0.100 / 0.110
G12     317.2          32.1                4.5 +/-    1.40       7.5 +/-    1.40  0.040 / 0.040
G17     52.7           37.1                3.8 +/-    1.06       5.9 +/-    1.06  0.030 / 0.030
G19     35.2           51.5                4.2 +/-    1.70       5.2 +/-    1.70  0.130 / 0.290
G24     270.6          42.0                6.2 +/-    2.71       8.7 +/-    2.71  0.120 / 0.280
G28     120.6          15.6                5.2 +/-    1.41      12.8 +/-    1.41  0.040 / 0.060