PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-14:57:30
G02     203.4          32.4               10.4 +/-    1.63      17.3 +/-    1.63  0.160 / 0.310
G03     59.8           9.8                 5.1 +/-    2.60      14.3 +/-    2.60  0.120 / 0.320
G06     162.2          68.0                7.0 +/-    0.61       7.5 +/-    0.61  0.080 / 0.210
G12     307.5          14.8                6.5 +/-    1.48      16.1 +/-    1.48  0.140 / 0.220
G17     38.1           47.5                5.9 +/-    1.75       7.6 +/-    1.75  0.030 / 0.030
G19     5.3            64.6                7.0 +/-    1.19       7.7 +/-    1.19  0.030 / 0.020
G24     300.4          36.6                8.2 +/-    1.59      12.6 +/-    1.59  0.060 / 0.100
G28     102.4          31.1                6.8 +/-    0.85      11.7 +/-    0.85  0.060 / 0.090