PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/01-16:27:20
G02     202.9          28.2               11.6 +/-    1.36      21.2 +/-    1.36  0.120 / 0.510
G06     160.4          66.0               11.7 +/-    0.65      12.7 +/-    0.65  0.180 / 0.460
G12     306.3          15.6                9.3 +/-    1.75      22.8 +/-    1.75  0.050 / 0.160
G17     32.6           51.9                9.6 +/-    0.70      11.8 +/-    0.70  0.050 / 0.150
G19     341.8          68.4               10.9 +/-    0.79      11.6 +/-    0.79  0.080 / 0.100
G24     301.2          36.9               11.0 +/-    0.64      16.8 +/-    0.64  0.070 / 0.130
G28     98.1           34.1               10.2 +/-    0.49      16.4 +/-    0.49  0.070 / 0.080