PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-22:13:00
G02     199.9          20.7               21.2 +/-    1.07      45.8 +/-    1.07  0.100 / 0.190
G06     170.6          53.4               17.0 +/-    1.59      20.6 +/-    1.59  0.080 / 0.170
G13     228.1          13.7               22.5 +/-    4.55      57.7 +/-    4.55  0.080 / 0.170
G17     14.4           63.4               13.4 +/-    1.23      14.8 +/-    1.23  0.100 / 0.170
G19     315.9          70.9               13.2 +/-    0.45      13.9 +/-    0.45  0.040 / 0.110
G24     310.6          29.0               11.5 +/-    1.51      20.5 +/-    1.51  0.040 / 0.080
G28     87.3           40.0               14.4 +/-    1.11      20.9 +/-    1.11  0.040 / 0.050
G30     156.7          14.4               18.1 +/-    1.52      45.7 +/-    1.52  0.040 / 0.040