PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-21:28:10
G02     72.5           23.3               11.0 +/-    0.89      22.4 +/-    0.89  0.120 / 0.240
G05     46.2           50.0               11.1 +/-    0.43      14.0 +/-    0.43  0.090 / 0.270
G12     181.2          14.9               16.8 +/-    2.17      42.0 +/-    2.17  0.060 / 0.100
G13     115.2          26.6               15.7 +/-    1.25      29.6 +/-    1.25  0.100 / 0.150
G15     155.3          25.4               15.7 +/-    1.16      30.4 +/-    1.16  0.090 / 0.170
G18     224.0          15.1               17.7 +/-    1.54      43.8 +/-    1.54  0.110 / 0.170
G20     227.0          80.2               11.5 +/-    0.81      11.7 +/-    0.81  0.040 / 0.040
G21     285.3          28.1                9.9 +/-    2.82      18.0 +/-    2.82  0.030 / 0.030
G25     213.1          35.5               12.4 +/-    1.95      19.5 +/-    1.95  0.030 / 0.060
G29     345.7          74.6               13.2 +/-    0.32      13.7 +/-    0.32  0.030 / 0.060