PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-18:43:00
G02     236.3          73.1                9.2 +/-    0.64       9.6 +/-    0.64  0.040 / 0.040
G05     172.3          14.4               12.2 +/-    2.00      30.9 +/-    2.00  0.030 / 0.050
G06     41.1           60.5                7.7 +/-    0.36       8.7 +/-    0.36  0.100 / 0.090
G12     320.8          48.0                7.7 +/-    0.50      10.0 +/-    0.50  0.100 / 0.090
G17     67.5           25.5                9.7 +/-    1.89      18.8 +/-    1.89  0.080 / 0.130
G19     55.5           38.7                8.0 +/-    1.04      11.8 +/-    1.04  0.090 / 0.110
G24     247.8          35.8               10.6 +/-    1.97      16.6 +/-    1.97  0.030 / 0.030