PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-14:12:30
G07     357.1          64.6                7.4 +/-    0.38       8.1 +/-    0.38  0.100 / 0.210
G08     86.8           52.9                8.6 +/-    1.37      10.5 +/-    1.37  0.110 / 0.160
G09     186.1          66.5                8.6 +/-    0.40       9.3 +/-    0.40  0.140 / 0.250
G11     140.0          19.1                9.0 +/-    0.82      20.2 +/-    0.82  0.180 / 0.380
G23     157.0          31.7                9.5 +/-    1.19      16.0 +/-    1.19  0.030 / 0.040
G27     49.3           28.1                5.3 +/-    2.37       9.6 +/-    2.37  0.030 / 0.040
G28     241.8          30.6                9.3 +/-    1.44      16.2 +/-    1.44  0.070 / 0.160
G30     310.7          43.7                7.5 +/-    0.75      10.3 +/-    0.75  0.060 / 0.150