PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-18:43:00
G01     93.3           30.5               12.3 +/-    1.21      21.2 +/-    1.21  0.060 / 0.060
G07     123.7          41.7               11.9 +/-    1.01      16.8 +/-    1.01  0.040 / 0.060
G11     70.9           40.9               11.5 +/-    0.68      16.5 +/-    0.68  0.040 / 0.080
G13     297.5          35.8               11.5 +/-    1.94      18.0 +/-    1.94  0.040 / 0.080
G17     211.3          50.5               13.4 +/-    0.53      16.8 +/-    0.53  0.040 / 0.080
G18     65.1           23.6               10.4 +/-    0.70      21.1 +/-    0.70  0.030 / 0.070
G19     212.5          24.6               14.2 +/-    1.80      28.1 +/-    1.80  0.100 / 0.130
G28     332.4          61.3                9.5 +/-    1.22      10.6 +/-    1.22  0.100 / 0.130
G30     97.8           76.2               12.3 +/-    1.12      12.6 +/-    1.12  0.080 / 0.140