PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-21:42:50
G02     14.2           68.7                8.9 +/-    0.93       9.5 +/-    0.93  0.130 / 0.590
G05     156.1          47.6               12.0 +/-    1.13      15.6 +/-    1.13  0.130 / 0.600
G06     46.7           26.9                8.8 +/-    1.49      16.5 +/-    1.49  0.030 / 0.070
G12     240.7          80.5                8.5 +/-    0.52       8.6 +/-    0.52  0.030 / 0.060
G19     86.1           21.2               10.1 +/-    2.46      21.5 +/-    2.46  0.020 / 0.070
G24     217.8          13.0               13.6 +/-    3.28      35.5 +/-    3.28  0.020 / 0.030
G25     312.5          41.2                9.9 +/-    1.00      14.1 +/-    1.00  0.040 / 0.040
G29     295.7          16.1                9.7 +/-    1.80      23.5 +/-    1.80  0.040 / 0.050