PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-07:13:00
G01     102.1          27.9                6.9 +/-    1.08      12.7 +/-    1.08  0.060 / 0.050
G07     113.9          53.5                7.0 +/-    0.63       8.5 +/-    0.63  0.070 / 0.050
G08     41.7           15.5                2.2 +/-    2.62       5.5 +/-    2.62  0.030 / 0.040
G11     82.3           41.7                6.1 +/-    0.82       8.6 +/-    0.82  0.030 / 0.030
G13     306.9          30.1                4.4 +/-    1.54       7.7 +/-    1.54  0.090 / 0.210
G17     207.6          44.4                7.9 +/-    0.94      10.7 +/-    0.94  0.080 / 0.240
G19     210.3          18.5                4.8 +/-    1.79      11.0 +/-    1.79  0.040 / 0.060
G28     328.8          61.6                4.7 +/-    0.62       5.3 +/-    0.62  0.040 / 0.040
G30     50.4           79.3                5.8 +/-    0.56       5.9 +/-    0.56  0.060 / 0.100