PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-03:27:50
G08     318.9          12.6                9.5 +/-    3.09      25.0 +/-    3.09  0.130 / 0.250
G10     310.9          55.7                8.8 +/-    2.01      10.4 +/-    2.01  0.110 / 0.250
G14     213.3          17.0               11.3 +/-    1.78      26.8 +/-    1.78  0.050 / 0.070
G15     45.7           22.2                6.7 +/-    2.69      14.0 +/-    2.69  0.080 / 0.070
G20     354.4          65.0               10.4 +/-    0.65      11.3 +/-    0.65  0.030 / 0.030
G21     117.4          68.7               10.9 +/-    1.20      11.6 +/-    1.20  0.030 / 0.030
G24     86.7           28.9                7.9 +/-    1.77      14.2 +/-    1.77  0.150 / 0.270
G27     290.2          37.0               12.8 +/-    2.64      19.6 +/-    2.64  0.090 / 0.200
G32     214.6          42.5               11.3 +/-    1.40      15.9 +/-    1.40  0.120 / 0.360