PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/01-02:12:50
G01     90.3           31.8                6.4 +/-    0.98      10.9 +/-    0.98  0.040 / 0.040
G07     125.4          45.7                8.8 +/-    0.36      11.8 +/-    0.36  0.040 / 0.050
G11     71.2           40.9                5.5 +/-    1.04       7.8 +/-    1.04  0.080 / 0.120
G13     295.6          35.3                6.8 +/-    3.27      10.7 +/-    3.27  0.100 / 0.100
G15     314.9          10.5               -7.0 +/-   13.94     -19.4 +/-   13.94  0.340 / 0.240
G17     214.8          52.7                9.5 +/-    1.09      11.6 +/-    1.09  0.030 / 0.050
G19     214.6          27.6                8.8 +/-    1.33      16.3 +/-    1.33  0.030 / 0.040
G28     350.5          61.7                5.2 +/-    0.54       5.8 +/-    0.54  0.050 / 0.060
G30     109.4          72.2                6.9 +/-    0.63       7.2 +/-    0.63  0.040 / 0.080