PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-14:57:40
G01     122.0          15.7               11.5 +/-    2.10      28.0 +/-    2.10  0.030 / 0.040
G07     71.0           68.1                9.9 +/-    0.96      10.6 +/-    0.96  0.030 / 0.040
G08     46.6           34.8                7.9 +/-    0.58      12.5 +/-    0.58  0.030 / 0.050
G09     176.7          28.5               11.1 +/-    2.55      20.0 +/-    2.55  0.040 / 0.040
G11     111.0          38.5               10.5 +/-    0.72      15.7 +/-    0.72  0.100 / 0.230
G13     319.1          16.8                7.9 +/-    1.43      18.8 +/-    1.43  0.090 / 0.250
G17     201.3          20.2               11.9 +/-    1.18      26.1 +/-    1.18  0.040 / 0.070
G18     97.7           19.5               10.3 +/-    0.97      22.9 +/-    0.97  0.040 / 0.070
G28     286.6          55.9               10.3 +/-    0.91      12.2 +/-    0.91  0.090 / 0.190
G30     340.6          65.5                9.6 +/-    0.71      10.4 +/-    0.71  0.070 / 0.140