PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-12:12:30
G08     307.7          18.8                3.3 +/-    0.94       7.6 +/-    0.94  0.080 / 0.080
G10     341.7          61.3                3.7 +/-    0.44       4.1 +/-    0.44  0.080 / 0.090
G14     221.4          33.7                5.6 +/-    1.20       9.1 +/-    1.20  0.120 / 0.120
G21     138.8          50.3                7.1 +/-    0.32       9.0 +/-    0.32  0.120 / 0.120
G24     68.5           29.6                4.7 +/-    0.91       8.3 +/-    0.91  0.040 / 0.050
G27     266.9          36.3                8.2 +/-    1.48      12.7 +/-    1.48  0.030 / 0.060
G32     228.9          58.5                6.1 +/-    1.81       7.1 +/-    1.81  0.050 / 0.060