PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-15:13:10
G01     88.3           32.2               11.4 +/-    0.75      19.1 +/-    0.75  0.030 / 0.040
G07     127.0          44.2               13.1 +/-    1.00      17.8 +/-    1.00  0.020 / 0.040
G11     66.4           38.8               10.6 +/-    0.45      15.8 +/-    0.45  0.100 / 0.110
G13     292.5          36.6               10.5 +/-    1.27      16.2 +/-    1.27  0.090 / 0.130
G17     215.8          54.9               13.3 +/-    0.91      15.9 +/-    0.91  0.040 / 0.050
G18     61.9           23.4                9.0 +/-    1.06      18.3 +/-    1.06  0.050 / 0.060
G19     215.6          25.9               11.7 +/-    1.85      22.4 +/-    1.85  0.050 / 0.060
G28     352.1          61.6                9.6 +/-    0.80      10.7 +/-    0.80  0.040 / 0.070
G30     108.2          75.6               12.1 +/-    0.75      12.4 +/-    0.75  0.050 / 0.100