PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-18:12:50
G01     117.9          18.9               12.2 +/-    1.48      27.7 +/-    1.48  0.040 / 0.080
G07     83.4           66.2               11.5 +/-    0.54      12.5 +/-    0.54  0.040 / 0.080
G08     45.1           32.6                8.1 +/-    1.31      13.5 +/-    1.31  0.030 / 0.030
G09     176.9          24.7               11.0 +/-    0.70      21.7 +/-    0.70  0.040 / 0.030
G11     106.3          40.5               11.3 +/-    0.86      16.4 +/-    0.86  0.040 / 0.030
G13     317.1          20.4               10.4 +/-    2.29      22.7 +/-    2.29  0.030 / 0.030
G17     203.0          23.0               11.0 +/-    2.48      22.5 +/-    2.48  0.040 / 0.050
G18     93.2           21.4               11.3 +/-    1.42      24.1 +/-    1.42  0.040 / 0.050
G28     295.8          58.0                9.6 +/-    1.58      11.1 +/-    1.58  0.120 / 0.220
G30     351.7          70.5               10.7 +/-    0.48      11.2 +/-    0.48  0.110 / 0.220