PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-18:27:30
G02     201.1          22.6                9.2 +/-    1.49      19.1 +/-    1.49  0.070 / 0.130
G06     167.2          58.3               11.8 +/-    1.39      13.6 +/-    1.39  0.070 / 0.110
G13     225.1          11.2               10.5 +/-    3.60      28.5 +/-    3.60  0.080 / 0.300
G17     23.7           58.4               10.1 +/-    0.82      11.7 +/-    0.82  0.090 / 0.330
G19     323.6          70.2                9.3 +/-    0.48       9.8 +/-    0.48  0.040 / 0.040
G24     307.5          32.3               10.9 +/-    0.94      18.2 +/-    0.94  0.040 / 0.050
G28     91.1           38.1               10.8 +/-    0.68      16.2 +/-    0.68  0.100 / 0.350
G30     157.6          12.4               10.6 +/-    2.31      28.2 +/-    2.31  0.160 / 0.450