PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-10:43:10
G01     74.1           33.1                5.6 +/-    0.33       9.1 +/-    0.33  0.100 / 0.290
G07     135.6          31.8                7.7 +/-    0.85      13.0 +/-    0.85  0.090 / 0.300
G11     55.3           31.1                4.1 +/-    0.79       7.1 +/-    0.79  0.040 / 0.100
G13     280.5          37.0                6.8 +/-    0.81      10.4 +/-    0.81  0.040 / 0.100
G15     305.9          14.4                2.7 +/-    2.07       6.8 +/-    2.07  0.040 / 0.050
G17     229.5          68.9                5.1 +/-    0.56       5.4 +/-    0.56  0.040 / 0.050
G19     222.2          41.1                7.6 +/-    0.90      10.9 +/-    0.90  0.040 / 0.050
G28     15.3           59.7                3.7 +/-    0.53       4.2 +/-    0.53  0.040 / 0.040
G30     131.1          65.6                5.6 +/-    0.68       6.1 +/-    0.68  0.050 / 0.100