PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-17:12:50
G01     74.8           32.8               10.5 +/-    0.95      17.4 +/-    0.95  0.040 / 0.050
G07     134.8          29.4               13.0 +/-    1.92      23.0 +/-    1.92  0.040 / 0.070
G11     55.8           33.3               10.4 +/-    1.81      17.1 +/-    1.81  0.050 / 0.130
G13     278.6          38.7               11.6 +/-    2.41      17.2 +/-    2.41  0.050 / 0.110
G15     305.3          14.7                9.7 +/-    1.38      24.2 +/-    1.38  0.050 / 0.110
G17     225.5          64.4               13.8 +/-    0.88      15.1 +/-    0.88  0.070 / 0.100
G18     51.0           19.2               10.9 +/-    1.29      24.4 +/-    1.29  0.070 / 0.130
G19     220.5          39.2               13.6 +/-    0.92      20.0 +/-    0.92  0.070 / 0.140
G28     1.4            61.3               11.4 +/-    0.96      12.8 +/-    0.96  0.040 / 0.050
G30     131.4          62.0               13.5 +/-    0.39      15.1 +/-    0.39  0.030 / 0.050