PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-12:43:10
G02     200.7          22.9                5.5 +/-    1.76      11.2 +/-    1.76  0.050 / 0.130
G06     171.9          55.5                8.5 +/-    1.36      10.1 +/-    1.36  0.050 / 0.110
G13     227.0          11.6                4.0 +/-    3.74      10.9 +/-    3.74  0.120 / 0.150
G17     27.9           55.9                4.0 +/-    1.58       4.7 +/-    1.58  0.100 / 0.150
G19     338.1          70.3                5.7 +/-    0.90       6.0 +/-    0.90  0.040 / 0.050
G24     309.5          30.1                4.0 +/-    1.58       7.0 +/-    1.58  0.050 / 0.050
G28     91.5           37.7                5.1 +/-    0.68       7.8 +/-    0.68  0.180 / 0.270
G30     157.6          12.9                6.5 +/-    2.23      17.1 +/-    2.23  0.110 / 0.270