PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/27-00:42:50
G05     52.9           10.7                7.2 +/-    3.54      19.7 +/-    3.54  0.070 / 0.300
G10     244.1          19.9                9.4 +/-    3.46      20.8 +/-    3.46  0.080 / 0.360
G13     62.9           35.0                9.2 +/-    0.79      14.7 +/-    0.79  0.030 / 0.040
G15     108.3          57.7               10.4 +/-    0.59      12.0 +/-    0.59  0.030 / 0.040
G16     305.0          14.3                6.3 +/-    1.69      16.0 +/-    1.69  0.130 / 0.170
G18     257.1          49.3                8.5 +/-    3.17      10.9 +/-    3.17  0.130 / 0.150
G20     38.3           54.2                7.7 +/-    0.71       9.3 +/-    0.71  0.180 / 0.220
G21     323.9          54.6                7.7 +/-    0.98       9.2 +/-    0.98  0.180 / 0.320
G26     277.3          18.1                8.9 +/-    1.54      20.5 +/-    1.54  0.100 / 0.190
G29     161.6          57.0                9.4 +/-    0.91      10.9 +/-    0.91  0.320 / 0.330