PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-15:58:10
G02     206.4          38.8               11.9 +/-    0.91      17.7 +/-    0.91  0.070 / 0.090
G06     134.9          76.1               10.5 +/-    0.54      10.8 +/-    0.54  0.070 / 0.070
G12     312.4          24.6               10.8 +/-    1.13      21.2 +/-    1.13  0.100 / 0.150
G17     43.0           43.3                7.6 +/-    0.47      10.5 +/-    0.47  0.060 / 0.140
G19     6.7            63.1                7.8 +/-    0.63       8.6 +/-    0.63  0.030 / 0.020
G24     288.3          41.8               10.0 +/-    1.48      14.1 +/-    1.48  0.030 / 0.030
G28     108.4          26.9                9.2 +/-    2.20      17.2 +/-    2.20  0.040 / 0.050