PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-07:42:40
G01     84.0           32.8                5.3 +/-    1.61       8.7 +/-    1.61  0.030 / 0.040
G07     129.9          40.0                7.9 +/-    0.78      11.4 +/-    0.78  0.040 / 0.040
G11     63.2           36.7                5.1 +/-    0.86       7.8 +/-    0.86  0.050 / 0.060
G13     290.3          36.3                7.0 +/-    2.02      10.9 +/-    2.02  0.050 / 0.070
G15     311.7          12.3                4.0 +/-    0.99      10.7 +/-    0.99  0.060 / 0.050
G17     218.9          60.4                8.1 +/-    1.20       9.2 +/-    1.20  0.060 / 0.030
G19     217.1          33.2                7.2 +/-    1.79      11.7 +/-    1.79  0.110 / 0.260
G28     0.4            61.1                4.0 +/-    0.39       4.5 +/-    0.39  0.100 / 0.230
G30     117.7          71.6                6.5 +/-    0.77       6.8 +/-    0.77  0.060 / 0.090