PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-15:12:40
G02     201.0          16.3                8.2 +/-    4.24      19.9 +/-    4.24  0.120 / 0.230
G06     168.9          53.3                7.7 +/-    1.98       9.4 +/-    1.98  0.090 / 0.200
G13     228.5          14.5                8.4 +/-    2.19      21.1 +/-    2.19  0.100 / 0.170
G17     21.1           60.6                6.4 +/-    0.75       7.2 +/-    0.75  0.080 / 0.140
G19     303.9          70.1                7.1 +/-    0.42       7.5 +/-    0.42  0.040 / 0.100
G24     310.5          29.5                5.3 +/-    1.35       9.4 +/-    1.35  0.040 / 0.090
G28     85.3           41.1                6.5 +/-    0.37       9.3 +/-    0.37  0.040 / 0.040
G30     157.4          18.0                7.2 +/-    1.71      16.7 +/-    1.71  0.040 / 0.040