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               12.6 +/-    1.64      22.5 +/-    1.64  0.040 / 0.040
G07     119.5          45.6               12.5 +/-    0.57      16.7 +/-    0.57  0.050 / 0.050
G08     41.6           13.7                9.7 +/-    2.58      24.9 +/-    2.58  0.040 / 0.060
G11     76.6           42.2               13.2 +/-    1.11      18.5 +/-    1.11  0.030 / 0.050
G13     302.2          33.9               11.0 +/-    1.13      17.9 +/-    1.13  0.030 / 0.020
G17     208.7          45.8               13.8 +/-    1.66      18.4 +/-    1.66  0.020 / 0.020
G18     69.9           24.1               12.5 +/-    1.28      24.9 +/-    1.28  0.100 / 0.170
G19     210.8          20.6               10.2 +/-    8.00      22.2 +/-    8.00  0.100 / 0.140
G28     323.5          60.7               10.1 +/-    1.00      11.4 +/-    1.00  0.070 / 0.140
G30     79.0           78.3               12.0 +/-    0.69      12.2 +/-    0.69  0.070 / 0.140