PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-14:58:10
G01     123.2          14.8               12.6 +/-    2.09      31.4 +/-    2.09  0.040 / 0.070
G07     67.0           68.6               11.0 +/-    0.52      11.7 +/-    0.52  0.030 / 0.070
G08     47.4           36.0                9.7 +/-    0.85      15.2 +/-    0.85  0.030 / 0.020
G09     176.9          30.0               11.6 +/-    2.65      20.4 +/-    2.65  0.040 / 0.030
G11     112.7          37.9               11.3 +/-    0.75      17.1 +/-    0.75  0.030 / 0.030
G13     319.6          15.7                8.9 +/-    3.70      21.8 +/-    3.70  0.030 / 0.030
G17     201.0          18.8               10.7 +/-    1.57      24.2 +/-    1.57  0.150 / 0.360
G18     99.1           18.9               11.6 +/-    2.39      26.3 +/-    2.39  0.120 / 0.270
G28     284.2          55.3               10.0 +/-    2.22      11.8 +/-    2.22  0.080 / 0.100
G30     338.7          64.4               11.0 +/-    0.71      12.1 +/-    0.71  0.070 / 0.110