PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-09:43:00
G01     317.8          21.5               15.5 +/-    2.75      32.9 +/-    2.75  0.040 / 0.040
G08     254.3          11.6                4.8 +/-    5.31      13.0 +/-    5.31  0.040 / 0.040
G10     85.6           50.0                5.6 +/-    1.14       7.0 +/-    1.14  0.170 / 0.260
G11     299.1          24.9                4.8 +/-    1.59       9.4 +/-    1.59  0.230 / 0.250
G14     309.9          71.6                4.9 +/-    0.55       5.1 +/-    0.55  0.270 / 0.260
G18     299.7          44.5                6.7 +/-    2.00       9.1 +/-    2.00  0.310 / 0.270
G20     108.5          26.4                5.9 +/-    1.27      11.2 +/-    1.27  0.040 / 0.050
G22     303.8          16.7                5.4 +/-    3.51      12.9 +/-    3.51  0.060 / 0.060
G31     175.5          45.3                8.0 +/-    0.93      10.8 +/-    0.93  0.080 / 0.160
G32     3.2            67.8                5.4 +/-    0.72       5.8 +/-    0.72  0.080 / 0.160