PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-15:12:50
G01     38.3           11.9                6.6 +/-    3.50      17.8 +/-    3.50  0.050 / 0.060
G02     200.1          10.6               -0.2 +/-    7.14      -0.4 +/-    7.14  0.040 / 0.070
G06     172.7          44.3               12.4 +/-    1.14      16.8 +/-    1.14  0.090 / 0.160
G13     232.5          19.3               11.2 +/-    2.76      25.1 +/-    2.76  0.100 / 0.140
G17     2.4            69.1                9.0 +/-    1.14       9.6 +/-    1.14  0.030 / 0.020
G19     295.5          71.8                9.5 +/-    0.97       9.9 +/-    0.97  0.030 / 0.030
G24     314.8          22.4                9.0 +/-    1.78      18.7 +/-    1.78  0.040 / 0.040
G28     71.6           49.2                9.1 +/-    1.17      11.6 +/-    1.17  0.040 / 0.030
G30     155.5          22.2               10.2 +/-    1.70      21.2 +/-    1.70  0.230 / 0.260