PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-08:42:30
G01     66.6           32.2                7.5 +/-    0.72      12.5 +/-    0.72  0.050 / 0.050
G07     139.3          26.6                8.4 +/-    0.63      15.8 +/-    0.63  0.040 / 0.040
G11     51.4           27.4                5.1 +/-    2.01       9.5 +/-    2.01  0.060 / 0.120
G13     271.9          36.4                9.0 +/-    1.56      13.8 +/-    1.56  0.080 / 0.100
G15     299.5          16.1                5.8 +/-    1.75      14.1 +/-    1.75  0.110 / 0.230
G17     243.2          74.0               11.0 +/-    0.47      11.4 +/-    0.47  0.110 / 0.260
G19     227.3          47.0               10.3 +/-    2.32      13.6 +/-    2.32  0.030 / 0.020
G28     26.9           58.1                9.6 +/-    1.19      11.1 +/-    1.19  0.030 / 0.020
G30     138.4          58.1                9.6 +/-    0.49      11.1 +/-    0.49  0.070 / 0.060