PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-22:43:00
G01     82.0           33.1               10.8 +/-    0.61      17.8 +/-    0.61  0.060 / 0.110
G07     131.3          39.9               12.5 +/-    1.15      18.2 +/-    1.15  0.050 / 0.100
G11     63.4           38.2                8.6 +/-    0.73      12.9 +/-    0.73  0.050 / 0.090
G13     286.9          37.2               10.1 +/-    1.35      15.4 +/-    1.35  0.060 / 0.090
G15     309.9          13.1                8.9 +/-    0.86      23.1 +/-    0.86  0.060 / 0.050
G17     220.9          56.7               11.8 +/-    1.17      13.8 +/-    1.17  0.060 / 0.060
G18     57.6           22.3                7.8 +/-    2.12      16.2 +/-    2.12  0.060 / 0.090
G19     218.2          33.1               13.6 +/-    1.63      22.4 +/-    1.63  0.050 / 0.090
G28     3.6            60.9                9.3 +/-    0.43      10.5 +/-    0.43  0.040 / 0.060
G30     123.3          67.6               10.8 +/-    0.92      11.6 +/-    0.92  0.040 / 0.050