PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-13:27:40
G07     333.0          58.5                6.2 +/-    1.29       7.1 +/-    1.29  0.030 / 0.050
G08     109.8          49.9                8.5 +/-    0.48      10.7 +/-    0.48  0.030 / 0.040
G09     211.0          79.8                8.1 +/-    1.36       8.2 +/-    1.36  0.110 / 0.230
G11     148.6          10.7                0.2 +/-   20.61       0.4 +/-   20.61  0.090 / 0.180
G16     45.2           12.3                4.6 +/-    1.59      12.2 +/-    1.59  0.260 / 0.550
G23     152.6          45.2                9.5 +/-    0.78      12.8 +/-    0.78  0.220 / 0.430
G27     61.8           34.8                6.5 +/-    0.86      10.3 +/-    0.86  0.050 / 0.060
G28     232.0          20.1                9.0 +/-    2.42      19.8 +/-    2.42  0.040 / 0.060
G30     299.4          34.5                7.2 +/-    1.59      11.6 +/-    1.59  0.050 / 0.080