PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-15:57:30
G01     225.6          17.0                9.7 +/-    1.67      23.0 +/-    1.67  0.090 / 0.190
G03     280.0          70.7                8.7 +/-    0.60       9.2 +/-    0.60  0.110 / 0.170
G14     87.0           23.2                7.4 +/-    1.39      15.0 +/-    1.39  0.030 / 0.040
G16     153.0          41.9               11.2 +/-    1.42      15.9 +/-    1.42  0.030 / 0.030
G22     206.6          68.8                9.4 +/-    0.49      10.0 +/-    0.49  0.110 / 0.210
G23     307.0          36.7                8.5 +/-    1.31      13.1 +/-    1.31  0.130 / 0.220
G26     104.7          55.3                9.6 +/-    1.14      11.3 +/-    1.14  0.060 / 0.050
G31     44.9           34.1                7.4 +/-    1.34      12.0 +/-    1.34  0.050 / 0.070