PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-08:12:40
G01     71.8           33.0                4.1 +/-    1.02       6.8 +/-    1.02  0.040 / 0.050
G07     136.8          30.8                7.0 +/-    0.82      12.1 +/-    0.82  0.060 / 0.050
G11     54.4           30.6                3.5 +/-    0.72       6.0 +/-    0.72  0.080 / 0.360
G13     277.5          37.0                5.9 +/-    1.02       9.0 +/-    1.02  0.120 / 0.400
G15     303.3          15.3                0.3 +/-    3.17       0.8 +/-    3.17  0.030 / 0.040
G17     232.9          70.1                5.6 +/-    1.23       5.9 +/-    1.23  0.030 / 0.080
G19     223.7          42.8                6.4 +/-    1.06       8.9 +/-    1.06  0.040 / 0.110
G28     19.2           59.2                4.1 +/-    0.32       4.7 +/-    0.32  0.060 / 0.100
G30     133.9          62.3                5.9 +/-    0.76       6.6 +/-    0.76  0.050 / 0.090