PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-16:12:40
G07     339.8          60.6                6.8 +/-    4.09       7.6 +/-    4.09  0.150 / 0.310
G08     103.4          50.7                6.5 +/-   10.73       8.1 +/-   10.73  0.090 / 0.290
G09     202.2          77.7                5.0 +/-    8.02       5.1 +/-    8.02  0.120 / 0.350
G11     146.6          12.3                9.7 +/-    9.53      25.8 +/-    9.53  0.140 / 0.440
G16     45.7           11.8                5.5 +/-    7.60      14.7 +/-    7.60  0.030 / 0.030
G23     154.3          44.4                8.3 +/-    2.94      11.3 +/-    2.94  0.030 / 0.040
G27     59.5           34.1                5.7 +/-    5.45       9.2 +/-    5.45  0.060 / 0.070
G28     233.8          22.8                8.6 +/-    8.06      17.8 +/-    8.06  0.050 / 0.060
G30     300.8          35.1                6.6 +/-    8.27      10.4 +/-    8.27  0.040 / 0.050