PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-00:12:30
G02     16.1           68.2                8.6 +/-    0.41       9.2 +/-    0.41  0.030 / 0.020
G05     155.6          47.4               14.8 +/-    0.91      19.4 +/-    0.91  0.030 / 0.020
G06     46.2           28.0                7.4 +/-    1.38      13.6 +/-    1.38  0.030 / 0.040
G12     255.1          80.1               11.6 +/-    0.99      11.8 +/-    0.99  0.040 / 0.040
G19     86.0           20.9               10.7 +/-    1.25      23.1 +/-    1.25  0.090 / 0.320
G24     218.7          13.6               15.8 +/-   17.11      40.5 +/-   17.11  0.180 / 0.350
G25     313.0          40.1                9.6 +/-    0.97      13.9 +/-    0.97  0.060 / 0.080
G29     295.4          16.0               10.4 +/-    1.42      25.1 +/-    1.42  0.050 / 0.080