PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-23:57:30
G05     46.4           23.6                7.3 +/-    1.21      14.6 +/-    1.21  0.050 / 0.140
G13     86.6           35.9               11.5 +/-    1.00      17.9 +/-    1.00  0.070 / 0.150
G15     138.3          45.6               14.7 +/-    1.30      19.6 +/-    1.30  0.110 / 0.250
G20     238.9          18.8               12.7 +/-    1.70      28.9 +/-    1.70  0.110 / 0.240
G21     304.8          40.9               10.9 +/-    1.20      15.7 +/-    1.20  0.050 / 0.090
G25     203.5          17.5               12.8 +/-    3.10      30.0 +/-    3.10  0.070 / 0.080
G26     294.5          21.0               11.0 +/-    2.25      23.6 +/-    2.25  0.020 / 0.030
G29     142.9          83.1               10.8 +/-    1.22      10.8 +/-    1.22  0.030 / 0.030