PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/06-16:12:40
G01     41.3           16.3                8.8 +/-    1.73      21.2 +/-    1.73  0.030 / 0.040
G06     174.9          39.0               15.8 +/-    1.43      23.3 +/-    1.43  0.030 / 0.040
G13     239.9          22.4               11.9 +/-    3.10      24.8 +/-    3.10  0.060 / 0.130
G15     274.2          12.4               10.7 +/-    1.04      28.4 +/-    1.04  0.060 / 0.120
G17     7.7            69.0               12.9 +/-    0.88      13.7 +/-    0.88  0.110 / 0.270
G19     281.7          70.7               12.8 +/-    0.60      13.5 +/-    0.60  0.130 / 0.210
G24     317.4          17.5               10.6 +/-    2.03      24.8 +/-    2.03  0.130 / 0.220
G28     71.5           46.8               11.1 +/-    0.63      14.5 +/-    0.63  0.110 / 0.170
G30     154.9          30.0               13.5 +/-    1.00      23.6 +/-    1.00  0.140 / 0.340