PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-00:12:50
G01     38.1           11.3                6.7 +/-    2.97      18.2 +/-    2.97  0.110 / 0.150
G02     199.2          14.5                8.6 +/-    4.85      21.7 +/-    4.85  0.080 / 0.170
G06     177.1          42.0                9.5 +/-    0.69      13.4 +/-    0.69  0.030 / 0.030
G13     231.7          18.1                8.8 +/-    2.76      20.3 +/-    2.76  0.040 / 0.030
G17     15.7           64.3                7.0 +/-    0.66       7.7 +/-    0.66  0.130 / 0.260
G19     296.3          71.1                6.3 +/-    0.66       6.6 +/-    0.66  0.110 / 0.210
G24     313.0          25.9                5.9 +/-    1.57      11.3 +/-    1.57  0.050 / 0.050
G28     76.2           46.6                6.2 +/-    0.43       8.1 +/-    0.43  0.050 / 0.050
G30     155.9          20.9                9.3 +/-    1.02      20.0 +/-    1.02  0.080 / 0.070