PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-10:43:00
G01     319.9          16.3                6.0 +/-    2.56      14.6 +/-    2.56  0.160 / 0.280
G08     259.2          14.7                4.9 +/-    3.32      12.3 +/-    3.32  0.130 / 0.250
G10     76.3           53.6                5.8 +/-    0.68       7.0 +/-    0.68  0.040 / 0.030
G11     304.7          22.4                5.3 +/-    2.04      11.0 +/-    2.04  0.040 / 0.030
G14     290.1          70.7                6.7 +/-    0.73       7.1 +/-    0.73  0.030 / 0.020
G18     305.7          40.6                6.8 +/-    1.79       9.8 +/-    1.79  0.030 / 0.020
G20     103.2          30.7                6.0 +/-    0.84      10.4 +/-    0.84  0.040 / 0.040
G27     227.4          11.1                4.5 +/-    3.26      12.3 +/-    3.26  0.040 / 0.060
G31     177.5          37.9                7.4 +/-    1.34      11.1 +/-    1.34  0.290 / 0.280
G32     345.3          71.6                6.4 +/-    0.97       6.7 +/-    0.97  0.310 / 0.350