PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-17:57:50
G02     202.4          30.2               10.9 +/-    1.18      19.0 +/-    1.18  0.060 / 0.090
G06     163.9          64.9               10.3 +/-    0.53      11.3 +/-    0.53  0.070 / 0.090
G12     304.4          11.0               -3.6 +/-   18.46      -9.7 +/-   18.46  0.110 / 0.100
G17     30.4           53.4                8.2 +/-    0.89      10.0 +/-    0.89  0.090 / 0.120
G19     355.7          66.9                8.1 +/-    0.60       8.7 +/-    0.60  0.080 / 0.090
G24     301.4          36.0                8.5 +/-    0.93      13.2 +/-    0.93  0.090 / 0.100
G28     95.6           38.3                9.4 +/-    0.64      14.0 +/-    0.64  0.050 / 0.040