PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-14:42:50
G02     215.3          53.0               12.5 +/-    1.27      15.2 +/-    1.27  0.050 / 0.060
G06     62.6           75.2               12.0 +/-    0.54      12.4 +/-    0.54  0.060 / 0.060
G12     318.8          37.4                8.5 +/-    0.96      13.0 +/-    0.96  0.070 / 0.070
G17     56.2           32.6                8.6 +/-    1.49      14.3 +/-    1.49  0.050 / 0.050
G19     30.4           54.1               10.4 +/-    1.43      12.5 +/-    1.43  0.030 / 0.020
G24     265.4          42.6               11.4 +/-    2.51      16.0 +/-    2.51  0.030 / 0.020
G28     120.8          16.1               11.6 +/-    2.19      27.9 +/-    2.19  0.040 / 0.040