PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-08:27:50
G08     264.3          15.5                5.9 +/-    1.51      14.5 +/-    1.51  0.050 / 0.060
G10     71.5           55.9                4.3 +/-    1.07       5.1 +/-    1.07  0.050 / 0.070
G11     308.1          19.8                6.1 +/-    2.10      13.5 +/-    2.10  0.110 / 0.420
G14     273.4          65.4                4.4 +/-    0.68       4.7 +/-    0.68  0.100 / 0.320
G18     309.2          35.8                5.0 +/-    1.37       7.8 +/-    1.37  0.150 / 0.440
G20     106.1          17.8                4.8 +/-    1.75      11.2 +/-    1.75  0.180 / 0.480
G21     155.6          10.2                4.1 +/-    2.59      11.4 +/-    2.59  0.030 / 0.030
G27     227.3          11.9                3.9 +/-    2.11      10.5 +/-    2.11  0.030 / 0.030
G31     175.3          38.4                7.3 +/-    1.22      10.9 +/-    1.22  0.110 / 0.240
G32     1.5            69.9                5.2 +/-    0.86       5.6 +/-    0.86  0.110 / 0.310