PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-15:12:50
G01     97.8           28.9               10.2 +/-    0.61      18.3 +/-    0.61  0.050 / 0.060
G07     119.0          47.2               11.5 +/-    0.44      15.0 +/-    0.44  0.040 / 0.050
G08     41.7           15.2                8.2 +/-    1.91      20.2 +/-    1.91  0.040 / 0.070
G11     77.2           42.6                9.9 +/-    0.92      13.8 +/-    0.92  0.050 / 0.050
G13     302.0          34.1               11.9 +/-    1.48      19.2 +/-    1.48  0.040 / 0.090
G17     209.1          43.9               12.4 +/-    1.13      17.0 +/-    1.13  0.040 / 0.090
G18     70.4           24.4                9.8 +/-    1.03      19.4 +/-    1.03  0.080 / 0.110
G19     210.7          21.2                8.6 +/-    9.28      18.3 +/-    9.28  0.080 / 0.120
G28     321.9          60.5               10.1 +/-    0.63      11.5 +/-    0.63  0.040 / 0.070
G30     80.1           78.2               10.3 +/-    0.74      10.5 +/-    0.74  0.050 / 0.080