PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-17:58:00
G02     202.9          32.1               11.2 +/-    0.80      18.8 +/-    0.80  0.060 / 0.090
G06     161.9          66.9                9.6 +/-    0.65      10.4 +/-    0.65  0.060 / 0.110
G12     305.5          12.3                8.6 +/-    2.36      22.8 +/-    2.36  0.090 / 0.130
G17     32.2           52.0                8.1 +/-    1.47      10.0 +/-    1.47  0.090 / 0.120
G19     359.9          65.9                8.4 +/-    0.75       9.1 +/-    0.75  0.070 / 0.080
G24     299.6          37.0                8.4 +/-    2.50      12.8 +/-    2.50  0.070 / 0.090
G28     97.5           37.1                9.9 +/-    1.06      15.1 +/-    1.06  0.050 / 0.040