PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-05:42:50
G01     91.7           31.4                5.1 +/-    0.70       8.7 +/-    0.70  0.040 / 0.060
G07     124.3          46.1                5.6 +/-    1.31       7.4 +/-    1.31  0.040 / 0.060
G11     71.0           40.1                3.9 +/-    0.54       5.6 +/-    0.54  0.040 / 0.060
G13     297.4          34.6                5.4 +/-    0.77       8.6 +/-    0.77  0.030 / 0.060
G17     213.5          53.3                9.1 +/-    1.05      11.1 +/-    1.05  0.060 / 0.040
G19     213.9          27.1                6.5 +/-    2.40      12.1 +/-    2.40  0.040 / 0.040
G28     348.1          61.7                2.4 +/-    0.56       2.7 +/-    0.56  0.100 / 0.110
G30     101.5          75.4                4.8 +/-    1.39       4.9 +/-    1.39  0.110 / 0.110