PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-16:42:10
G02     202.0          27.2               11.5 +/-    1.90      21.5 +/-    1.90  0.050 / 0.100
G06     165.3          62.5               11.4 +/-    0.69      12.6 +/-    0.69  0.060 / 0.070
G17     26.9           55.9               10.2 +/-    0.91      12.1 +/-    0.91  0.100 / 0.130
G19     350.2          68.2               10.2 +/-    0.72      10.9 +/-    0.72  0.120 / 0.130
G24     303.9          34.4               10.1 +/-    1.73      16.2 +/-    1.73  0.090 / 0.120
G28     92.7           40.0               10.6 +/-    0.91      15.4 +/-    0.91  0.070 / 0.110