PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-16:12:30
G02     218.4          60.0                8.5 +/-    0.74       9.6 +/-    0.74  0.110 / 0.400
G06     53.0           72.0               10.3 +/-    0.39      10.8 +/-    0.39  0.110 / 0.370
G12     318.5          37.0                7.4 +/-    1.09      11.3 +/-    1.09  0.040 / 0.090
G17     56.1           34.3                7.4 +/-    0.50      11.9 +/-    0.50  0.040 / 0.080
G19     42.8           46.5                9.4 +/-    0.97      12.4 +/-    0.97  0.090 / 0.100
G24     263.5          40.7               10.6 +/-    0.96      15.3 +/-    0.96  0.060 / 0.090
G28     122.1          17.9                9.1 +/-    1.49      21.0 +/-    1.49  0.040 / 0.060