PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-11:12:40
G08     288.2          21.0                5.2 +/-    2.44      11.2 +/-    2.44  0.050 / 0.080
G10     27.9           62.8                5.3 +/-    0.37       5.9 +/-    0.37  0.050 / 0.080
G14     239.0          51.6                6.7 +/-    0.91       8.3 +/-    0.91  0.100 / 0.110
G18     317.4          17.0                4.3 +/-    2.29      10.3 +/-    2.29  0.110 / 0.130
G21     150.4          30.2                6.3 +/-    1.87      10.9 +/-    1.87  0.050 / 0.110
G24     48.5           20.9                3.2 +/-    1.54       6.8 +/-    1.54  0.080 / 0.140
G27     244.2          26.1                7.4 +/-    1.26      14.1 +/-    1.26  0.030 / 0.030
G31     180.6          16.1                6.4 +/-    2.90      15.5 +/-    2.90  0.030 / 0.030
G32     276.6          75.3                5.9 +/-    0.71       6.1 +/-    0.71  0.120 / 0.230