PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/21-10:43:10
G08     319.3          11.7                1.7 +/-   10.52       4.5 +/-   10.52  0.240 / 0.370
G10     315.0          56.6                2.9 +/-    1.42       3.4 +/-    1.42  0.140 / 0.370
G14     214.4          20.0                5.3 +/-    2.44      11.6 +/-    2.44  0.080 / 0.150
G15     45.6           17.1                2.6 +/-    1.61       6.2 +/-    1.61  0.090 / 0.160
G20     74.6           22.6                3.8 +/-    1.00       7.9 +/-    1.00  0.030 / 0.040
G21     123.3          64.3                5.8 +/-    0.62       6.4 +/-    0.62  0.030 / 0.040
G24     85.0           29.7                5.9 +/-    1.04      10.3 +/-    1.04  0.040 / 0.060
G27     285.7          37.7                6.4 +/-    1.10       9.7 +/-    1.10  0.070 / 0.090
G32     216.5          44.6                7.2 +/-    1.10       9.8 +/-    1.10  0.220 / 0.320