PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-11:12:30
G08     299.2          20.7                3.5 +/-    2.00       7.6 +/-    2.00  0.090 / 0.080
G10     2.9            62.9                3.3 +/-    1.07       3.7 +/-    1.07  0.080 / 0.080
G14     228.3          42.1                7.4 +/-    1.66      10.4 +/-    1.66  0.220 / 0.290
G20     91.7           10.4                4.2 +/-    2.00      11.7 +/-    2.00  0.200 / 0.340
G21     145.4          41.2                4.7 +/-    0.94       6.7 +/-    0.94  0.040 / 0.060
G24     57.9           26.6                3.6 +/-    2.07       6.8 +/-    2.07  0.050 / 0.070
G27     255.3          32.3                5.6 +/-    2.39       9.3 +/-    2.39  0.090 / 0.140
G32     244.0          67.8                5.1 +/-    0.63       5.4 +/-    0.63  0.070 / 0.090