PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-00:27:30
G02     199.8          23.1               13.8 +/-    2.60      28.1 +/-    2.60  0.040 / 0.050
G06     171.0          54.7               14.5 +/-    0.96      17.4 +/-    0.96  0.030 / 0.050
G13     227.0          12.5               11.3 +/-    4.93      29.9 +/-    4.93  0.040 / 0.100
G17     17.1           62.0               10.1 +/-    0.80      11.3 +/-    0.80  0.040 / 0.110
G19     324.5          70.8               10.2 +/-    0.99      10.7 +/-    0.99  0.080 / 0.140
G24     309.7          30.0               10.0 +/-    1.58      17.5 +/-    1.58  0.080 / 0.150
G28     89.5           38.8               11.7 +/-    0.33      17.3 +/-    0.33  0.090 / 0.130
G30     156.5          11.7               13.2 +/-    1.59      35.4 +/-    1.59  0.130 / 0.150