PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-07:27:50
G01     92.3           31.2                6.7 +/-    0.82      11.4 +/-    0.82  0.040 / 0.050
G07     123.8          46.1                7.8 +/-    1.42      10.4 +/-    1.42  0.040 / 0.050
G11     71.0           39.7                4.5 +/-    0.61       6.6 +/-    0.61  0.050 / 0.050
G13     298.3          34.3                4.8 +/-    0.76       7.7 +/-    0.76  0.040 / 0.050
G17     213.0          53.4                8.1 +/-    1.14       9.8 +/-    1.14  0.050 / 0.070
G19     213.6          26.7                5.7 +/-    2.22      10.7 +/-    2.22  0.040 / 0.050
G28     346.8          61.7                2.8 +/-    0.74       3.1 +/-    0.74  0.070 / 0.120
G30     96.7           76.8                5.1 +/-    0.66       5.2 +/-    0.66  0.080 / 0.110