PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-17:28:00
G07     61.7           66.6                9.6 +/-    0.70      10.4 +/-    0.70  0.050 / 0.110
G08     52.6           41.4                9.2 +/-    0.60      13.0 +/-    0.60  0.060 / 0.090
G09     179.3          40.5               13.3 +/-    0.90      19.1 +/-    0.90  0.060 / 0.120
G11     120.0          34.5               11.1 +/-    1.13      17.7 +/-    1.13  0.060 / 0.120
G17     199.1          12.2               12.6 +/-    1.70      33.4 +/-    1.70  0.070 / 0.070
G18     104.3          15.3               10.3 +/-    1.49      25.5 +/-    1.49  0.070 / 0.070
G23     160.4          10.0               11.1 +/-    3.35      31.1 +/-    3.35  0.220 / 0.410
G27     37.9           10.8                8.7 +/-    2.18      23.8 +/-    2.18  0.240 / 0.410
G28     267.2          47.5               10.9 +/-    1.43      14.2 +/-    1.43  0.030 / 0.040
G30     332.3          60.1                8.5 +/-    0.58       9.6 +/-    0.58  0.030 / 0.040