PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-15:43:10
G01     102.6          27.8               11.7 +/-    2.35      21.4 +/-    2.35  0.030 / 0.050
G07     113.2          55.0               11.8 +/-    0.45      14.1 +/-    0.45  0.030 / 0.050
G08     41.7           16.9                8.8 +/-    1.03      20.9 +/-    1.03  0.030 / 0.040
G11     82.7           42.6               10.4 +/-    0.78      14.6 +/-    0.78  0.030 / 0.040
G13     305.9          31.3               10.3 +/-    1.36      17.5 +/-    1.36  0.080 / 0.150
G17     208.1          41.3               12.1 +/-    1.95      17.2 +/-    1.95  0.070 / 0.160
G18     75.5           24.7               10.3 +/-    2.32      20.2 +/-    2.32  0.060 / 0.060
G19     210.7          14.8               -0.7 +/-   18.17      -1.7 +/-   18.17  0.060 / 0.060
G28     326.7          61.5                9.6 +/-    0.99      10.7 +/-    0.99  0.040 / 0.070
G30     44.8           79.7               10.2 +/-    2.14      10.4 +/-    2.14  0.040 / 0.080