PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-09:43:00
G01     94.5           30.7                5.3 +/-    0.92       9.1 +/-    0.92  0.040 / 0.040
G07     122.1          47.9                7.0 +/-    1.38       9.1 +/-    1.38  0.040 / 0.040
G11     71.5           40.5                5.8 +/-    1.16       8.4 +/-    1.16  0.030 / 0.030
G13     298.4          35.0                4.9 +/-    1.41       7.7 +/-    1.41  0.030 / 0.020
G17     211.3          51.7                7.5 +/-    0.80       9.3 +/-    0.80  0.080 / 0.130
G18     66.1           23.8                3.8 +/-    0.76       7.7 +/-    0.76  0.090 / 0.100
G19     213.4          19.7                6.3 +/-    3.13      13.9 +/-    3.13  0.070 / 0.110
G28     339.3          61.8                5.1 +/-    0.64       5.7 +/-    0.64  0.070 / 0.090
G30     82.3           79.7                5.5 +/-    0.37       5.6 +/-    0.37  0.050 / 0.110