PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-15:28:00
G01     96.2           30.2               14.8 +/-    0.57      25.9 +/-    0.57  0.020 / 0.040
G07     120.3          50.1               13.4 +/-    0.33      16.8 +/-    0.33  0.030 / 0.030
G08     41.9           11.8               12.1 +/-    3.64      32.5 +/-    3.64  0.080 / 0.120
G11     74.7           41.4               14.6 +/-    1.22      20.7 +/-    1.22  0.090 / 0.120
G13     300.2          34.2               11.1 +/-    0.96      17.9 +/-    0.96  0.040 / 0.080
G17     211.1          47.6               14.7 +/-    1.28      19.1 +/-    1.28  0.040 / 0.090
G18     69.1           24.5               13.8 +/-    0.57      27.2 +/-    0.57  0.030 / 0.060
G19     212.7          19.9               11.7 +/-    3.06      25.9 +/-    3.06  0.030 / 0.060
G28     338.6          61.9               11.0 +/-    0.51      12.3 +/-    0.51  0.050 / 0.060
G30     79.0           79.4               11.9 +/-    0.40      12.1 +/-    0.40  0.040 / 0.050