PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-13:27:50
G02     202.6          31.4               12.7 +/-    1.81      21.6 +/-    1.81  0.110 / 0.270
G03     61.3           9.7                 5.0 +/-    1.15      14.1 +/-    1.15  0.120 / 0.240
G06     165.9          65.5               10.4 +/-    0.38      11.3 +/-    0.38  0.140 / 0.160
G12     306.3          13.0                5.4 +/-    1.78      14.0 +/-    1.78  0.190 / 0.260
G17     36.3           49.0                6.1 +/-    1.75       7.8 +/-    1.75  0.070 / 0.120
G19     1.1            65.8                7.3 +/-    0.54       7.9 +/-    0.54  0.060 / 0.100
G24     302.2          35.6                7.4 +/-    0.85      11.6 +/-    0.85  0.040 / 0.050
G28     100.7          32.3                7.0 +/-    1.39      11.7 +/-    1.39  0.030 / 0.040