PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-16:28:10
G02     210.0          47.2               13.2 +/-    1.36      17.3 +/-    1.36  0.030 / 0.030
G06     93.8           78.4               12.4 +/-    0.70      12.7 +/-    0.70  0.030 / 0.030
G12     316.1          31.3               11.2 +/-    1.26      19.1 +/-    1.26  0.060 / 0.140
G17     49.7           37.9                8.7 +/-    0.64      13.0 +/-    0.64  0.070 / 0.110
G19     21.0           58.2               10.3 +/-    0.36      11.9 +/-    0.36  0.050 / 0.060
G24     277.4          43.0               10.9 +/-    1.60      15.1 +/-    1.60  0.050 / 0.080
G28     115.1          21.3               10.7 +/-    1.85      22.9 +/-    1.85  0.040 / 0.040