PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-18:28:10
G02     207.3          44.7               12.2 +/-    0.54      16.5 +/-    0.54  0.090 / 0.090
G06     131.0          78.0               10.7 +/-    0.87      10.9 +/-    0.87  0.070 / 0.080
G12     311.8          21.7                8.0 +/-    5.13      16.9 +/-    5.13  0.080 / 0.180
G17     43.5           43.3                8.2 +/-    0.61      11.4 +/-    0.61  0.070 / 0.150
G19     21.7           58.0                9.8 +/-    0.42      11.4 +/-    0.42  0.050 / 0.080
G24     285.1          41.5                9.4 +/-    1.27      13.3 +/-    1.27  0.040 / 0.080
G28     109.4          29.1               10.2 +/-    1.74      18.3 +/-    1.74  0.070 / 0.240