PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-07:42:40
G01     90.8           31.6                7.2 +/-    0.91      12.2 +/-    0.91  0.050 / 0.060
G07     125.0          45.0                8.0 +/-    0.95      10.8 +/-    0.95  0.040 / 0.060
G11     69.4           39.2                5.0 +/-    0.44       7.4 +/-    0.44  0.040 / 0.040
G13     296.9          34.7                2.9 +/-    1.32       4.7 +/-    1.32  0.040 / 0.050
G17     213.9          54.7                7.0 +/-    1.25       8.3 +/-    1.25  0.050 / 0.050
G19     214.2          27.9                4.0 +/-    2.34       7.3 +/-    2.34  0.040 / 0.060
G28     349.3          61.7                3.0 +/-    0.66       3.4 +/-    0.66  0.080 / 0.100
G30     101.2          76.1                6.3 +/-    1.51       6.4 +/-    1.51  0.080 / 0.120