PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-18:28:10
G02     201.2          23.0               11.4 +/-    2.19      23.4 +/-    2.19  0.170 / 0.240
G06     166.9          58.8               11.3 +/-    0.52      12.9 +/-    0.52  0.160 / 0.220
G13     224.8          10.9               10.5 +/-    4.34      28.6 +/-    4.34  0.160 / 0.150
G17     24.2           58.1                9.5 +/-    0.82      11.0 +/-    0.82  0.160 / 0.130
G19     325.1          70.1                9.4 +/-    0.37       9.9 +/-    0.37  0.030 / 0.040
G24     307.1          32.6                9.4 +/-    2.25      15.5 +/-    2.25  0.050 / 0.030
G28     91.6           37.8               11.3 +/-    1.06      17.1 +/-    1.06  0.040 / 0.030
G30     157.6          11.9                9.6 +/-    2.32      25.5 +/-    2.32  0.040 / 0.040