PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-15:42:50
G01     90.3           31.8               11.2 +/-    0.36      18.9 +/-    0.36  0.040 / 0.040
G07     125.4          45.8               11.6 +/-    0.98      15.5 +/-    0.98  0.030 / 0.030
G11     68.5           39.7               10.4 +/-    0.52      15.2 +/-    0.52  0.090 / 0.120
G13     294.6          36.1               10.5 +/-    1.18      16.4 +/-    1.18  0.100 / 0.120
G17     214.5          52.7               12.7 +/-    0.52      15.5 +/-    0.52  0.040 / 0.070
G18     63.8           23.8                8.8 +/-    0.92      17.6 +/-    0.92  0.050 / 0.050
G19     214.8          24.5               13.3 +/-    1.99      26.2 +/-    1.99  0.040 / 0.060
G28     348.8          61.8                8.8 +/-    0.56       9.9 +/-    0.56  0.040 / 0.050
G30     102.6          76.7               12.0 +/-    0.79      12.3 +/-    0.79  0.040 / 0.080