PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-19:57:40
G02     221.1          64.2               10.6 +/-    0.55      11.6 +/-    0.55  0.080 / 0.110
G06     47.9           68.3                9.6 +/-    0.59      10.2 +/-    0.59  0.070 / 0.080
G12     320.7          43.1                9.4 +/-    1.30      13.0 +/-    1.30  0.040 / 0.060
G17     61.0           30.1                9.2 +/-    0.73      16.1 +/-    0.73  0.040 / 0.060
G19     42.5           47.9                9.2 +/-    0.75      11.9 +/-    0.75  0.050 / 0.070
G24     257.5          40.2               12.2 +/-    0.98      17.7 +/-    0.98  0.040 / 0.070