PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/16-11:57:50
G08     298.7          21.0                5.0 +/-    1.53      10.8 +/-    1.53  0.090 / 0.110
G10     2.8            62.9                3.4 +/-    1.04       3.8 +/-    1.04  0.080 / 0.080
G14     228.4          42.4                6.7 +/-    1.83       9.3 +/-    1.83  0.040 / 0.070
G21     145.3          40.8                4.6 +/-    1.03       6.6 +/-    1.03  0.040 / 0.070
G24     58.0           26.6                3.5 +/-    1.56       6.6 +/-    1.56  0.100 / 0.130
G27     255.3          32.3                5.1 +/-    2.66       8.6 +/-    2.66  0.070 / 0.090
G32     243.9          67.6                4.3 +/-    0.70       4.6 +/-    0.70  0.110 / 0.090