PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-15:42:40
G01     90.3           31.8               10.3 +/-    0.86      17.4 +/-    0.86  0.080 / 0.120
G07     125.4          45.8               11.1 +/-    0.75      14.8 +/-    0.75  0.100 / 0.120
G11     68.5           39.7                9.2 +/-    1.13      13.4 +/-    1.13  0.080 / 0.140
G13     294.6          36.1               11.5 +/-    2.27      17.9 +/-    2.27  0.050 / 0.130
G17     214.5          52.7               12.2 +/-    1.14      14.9 +/-    1.14  0.040 / 0.050
G18     63.8           23.8                8.8 +/-    1.89      17.6 +/-    1.89  0.050 / 0.040
G19     214.8          24.5               11.5 +/-    1.88      22.8 +/-    1.88  0.040 / 0.050
G28     348.8          61.8               10.4 +/-    0.74      11.6 +/-    0.74  0.040 / 0.050
G30     102.6          76.7               12.3 +/-    0.45      12.6 +/-    0.45  0.270 / 0.200