PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-02:42:30
G08     295.8          22.9                9.3 +/-    0.75      19.0 +/-    0.75  0.050 / 0.080
G10     1.4            62.8                8.8 +/-    0.74       9.7 +/-    0.74  0.070 / 0.080
G14     227.3          41.9               13.2 +/-    2.10      18.6 +/-    2.10  0.040 / 0.070
G20     19.2           65.7               15.5 +/-    0.51      16.8 +/-    0.51  0.040 / 0.060
G21     145.2          44.2               11.4 +/-    0.59      15.5 +/-    0.59  0.060 / 0.080
G24     57.6           25.9                9.0 +/-    1.89      17.2 +/-    1.89  0.060 / 0.110
G27     257.7          33.0               10.9 +/-    2.36      18.0 +/-    2.36  0.160 / 0.100
G32     241.9          67.4               10.1 +/-    0.79      10.9 +/-    0.79  0.090 / 0.130