PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-21:58:00
G02     210.6          52.9               15.7 +/-    0.70      19.1 +/-    0.70  0.150 / 0.130
G06     84.6           78.5               12.9 +/-    0.35      13.2 +/-    0.35  0.080 / 0.120
G12     316.2          30.2               11.7 +/-    1.05      20.5 +/-    1.05  0.050 / 0.070
G17     49.3           39.4               11.2 +/-    1.61      16.5 +/-    1.61  0.060 / 0.070
G19     27.8           55.3               11.8 +/-    1.75      14.1 +/-    1.75  0.030 / 0.030
G24     275.3          42.6               13.4 +/-    3.23      18.7 +/-    3.23  0.030 / 0.020
G28     117.5          19.0               14.3 +/-    2.36      32.2 +/-    2.36  0.040 / 0.120