PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-21:42:40
G02     62.5           31.5               13.0 +/-    1.10      22.1 +/-    1.10  0.050 / 0.080
G05     54.5           60.7               12.6 +/-    0.62      14.2 +/-    0.62  0.040 / 0.070
G12     183.6          26.2               17.7 +/-    1.17      33.5 +/-    1.17  0.100 / 0.300
G13     125.6          18.7               16.1 +/-    1.71      36.6 +/-    1.71  0.100 / 0.290
G15     162.4          15.2               20.9 +/-    2.25      51.8 +/-    2.25  0.030 / 0.050
G20     210.1          67.4               16.4 +/-    0.50      17.6 +/-    0.50  0.040 / 0.040
G21     275.3          20.7               13.1 +/-    2.56      28.4 +/-    2.56  0.080 / 0.140
G25     222.5          46.2               15.9 +/-    1.01      21.1 +/-    1.01  0.070 / 0.130
G29     333.8          61.9               14.0 +/-    0.82      15.7 +/-    0.82  0.030 / 0.050