PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/07-21:43:00
G01     90.4           31.8               11.8 +/-    1.06      19.9 +/-    1.06  0.210 / 0.230
G07     125.4          46.1               13.5 +/-    0.46      17.9 +/-    0.46  0.120 / 0.220
G08     42.6           11.9                9.5 +/-    2.53      25.4 +/-    2.53  0.060 / 0.150
G11     70.9           41.1               10.8 +/-    0.87      15.4 +/-    0.87  0.070 / 0.150
G13     295.1          35.7               13.3 +/-    3.58      20.9 +/-    3.58  0.020 / 0.030
G17     215.2          49.1               13.2 +/-    0.69      16.8 +/-    0.69  0.020 / 0.030
G18     64.5           24.1               10.3 +/-    1.86      20.5 +/-    1.86  0.080 / 0.120
G19     214.7          26.4               13.8 +/-    1.68      26.2 +/-    1.68  0.090 / 0.110
G28     349.9          61.7               12.1 +/-    0.35      13.6 +/-    0.35  0.040 / 0.050
G30     107.4          73.9               14.1 +/-    0.59      14.6 +/-    0.59  0.040 / 0.050