PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-00:42:40
G01     122.0          15.8                8.8 +/-    0.98      21.4 +/-    0.98  0.080 / 0.150
G07     71.0           68.0                5.7 +/-    0.72       6.1 +/-    0.72  0.050 / 0.140
G08     47.2           36.0                4.5 +/-    0.46       7.1 +/-    0.46  0.040 / 0.060
G09     178.2          30.4                7.1 +/-    2.25      12.3 +/-    2.25  0.040 / 0.060
G11     114.0          38.1                8.1 +/-    0.78      12.2 +/-    0.78  0.040 / 0.080
G13     319.5          15.9                4.1 +/-    1.73       9.9 +/-    1.73  0.040 / 0.060
G17     201.4          20.3                8.8 +/-    1.69      19.1 +/-    1.69  0.030 / 0.040
G28     287.8          56.4                7.3 +/-    0.93       8.6 +/-    0.93  0.030 / 0.040
G30     350.2          68.7                4.6 +/-    0.83       4.9 +/-    0.83  0.070 / 0.110