PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-15:12:50
G01     81.3           32.8                8.0 +/-    0.63      13.3 +/-    0.63  0.040 / 0.050
G07     131.5          35.7                8.8 +/-    0.68      13.7 +/-    0.68  0.030 / 0.050
G11     59.6           33.5                7.4 +/-    0.91      12.0 +/-    0.91  0.050 / 0.040
G13     288.1          36.5                7.8 +/-    1.62      12.0 +/-    1.62  0.040 / 0.040
G15     312.9          11.0                4.7 +/-   14.82      12.8 +/-   14.82  0.060 / 0.100
G17     220.9          63.4               11.7 +/-    0.39      12.9 +/-    0.39  0.060 / 0.100
G19     218.2          35.6                3.3 +/-   37.52       5.1 +/-   37.52  0.040 / 0.100
G28     3.1            60.8                8.3 +/-    1.01       9.3 +/-    1.01  0.050 / 0.090
G30     119.2          72.7               10.6 +/-    0.90      11.0 +/-    0.90  0.050 / 0.130