PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-19:43:00
G01     91.1           31.7               14.6 +/-    1.15      24.7 +/-    1.15  0.150 / 0.300
G07     124.8          46.7               13.5 +/-    0.91      17.8 +/-    0.91  0.110 / 0.260
G08     42.5           10.8                9.1 +/-    1.86      25.0 +/-    1.86  0.030 / 0.050
G11     70.8           40.8               13.4 +/-    1.23      19.2 +/-    1.23  0.040 / 0.040
G13     295.7          35.6               11.5 +/-    3.17      18.1 +/-    3.17  0.030 / 0.030
G17     214.7          49.0               13.0 +/-    0.99      16.7 +/-    0.99  0.020 / 0.030
G18     65.0           24.2               12.4 +/-    1.64      24.8 +/-    1.64  0.090 / 0.100
G19     214.4          25.2               13.9 +/-    1.59      27.0 +/-    1.59  0.090 / 0.110
G28     348.3          61.8               11.7 +/-    0.54      13.1 +/-    0.54  0.030 / 0.040
G30     103.7          75.4               11.6 +/-    0.99      11.9 +/-    0.99  0.030 / 0.050