PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-04:12:50
G01     258.3          38.2                6.7 +/-    2.82      10.1 +/-    2.82  0.250 / 0.260
G03     316.4          35.5                6.2 +/-    1.21       9.7 +/-    1.21  0.190 / 0.310
G10     134.6          10.3                7.3 +/-    2.26      20.1 +/-    2.26  0.050 / 0.030
G11     240.4          16.3                7.3 +/-    0.91      17.7 +/-    0.91  0.060 / 0.040
G14     55.1           43.2                4.5 +/-    0.60       6.3 +/-    0.60  0.050 / 0.070
G22     310.8          59.9                5.6 +/-    1.02       6.3 +/-    1.02  0.050 / 0.070
G25     42.1           11.4                4.2 +/-    1.68      11.4 +/-    1.68  0.030 / 0.030
G26     144.7          31.4                8.1 +/-    2.19      13.8 +/-    2.19  0.030 / 0.030
G31     43.2           67.2                5.1 +/-    0.52       5.5 +/-    0.52  0.120 / 0.180
G32     70.8           28.9                4.7 +/-    1.41       8.4 +/-    1.41  0.150 / 0.170