PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-18:12:50
G01     98.2           28.9               11.7 +/-    1.61      20.9 +/-    1.61  0.070 / 0.180
G07     119.5          45.6               13.6 +/-    1.22      18.2 +/-    1.22  0.070 / 0.160
G08     41.6           13.7                7.9 +/-    1.72      20.4 +/-    1.72  0.130 / 0.170
G11     76.6           42.2               12.3 +/-    0.59      17.2 +/-    0.59  0.110 / 0.150
G13     302.2          33.9               14.4 +/-    1.91      23.4 +/-    1.91  0.040 / 0.060
G17     208.7          45.8               14.2 +/-    2.88      18.9 +/-    2.88  0.040 / 0.060
G18     69.9           24.1               12.6 +/-    1.58      25.2 +/-    1.58  0.040 / 0.080
G19     210.8          20.6                7.0 +/-   13.23      15.2 +/-   13.23  0.040 / 0.070
G28     323.5          60.7               11.4 +/-    1.19      12.9 +/-    1.19  0.100 / 0.180
G30     79.0           78.3               10.3 +/-    1.19      10.5 +/-    1.19  0.090 / 0.220