PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-20:58:00
G01     75.2           32.9               10.8 +/-    1.32      17.8 +/-    1.32  0.040 / 0.040
G07     134.7          29.0               15.1 +/-    1.63      27.0 +/-    1.63  0.040 / 0.050
G11     55.5           32.7                9.8 +/-    1.33      16.2 +/-    1.33  0.110 / 0.090
G13     278.9          38.6               12.8 +/-    1.41      19.1 +/-    1.41  0.100 / 0.100
G15     305.4          14.7                6.9 +/-    2.75      17.3 +/-    2.75  0.030 / 0.030
G17     225.9          66.5               12.9 +/-    0.85      13.9 +/-    0.85  0.030 / 0.030
G18     50.3           18.6                9.4 +/-    3.98      21.5 +/-    3.98  0.080 / 0.100
G19     220.6          38.3               13.4 +/-    1.61      20.0 +/-    1.61  0.100 / 0.110
G28     3.4            61.2               10.5 +/-    0.61      11.8 +/-    0.61  0.070 / 0.080
G30     131.0          64.5               14.2 +/-    0.53      15.5 +/-    0.53  0.220 / 0.280