PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-23:43:00
G02     347.0          78.1                9.7 +/-    1.32       9.9 +/-    1.32  0.030 / 0.030
G05     163.2          34.2               14.6 +/-    1.64      23.6 +/-    1.64  0.030 / 0.030
G06     40.6           42.3                8.8 +/-    0.92      12.3 +/-    0.92  0.110 / 0.150
G12     312.9          68.4                9.7 +/-    0.85      10.4 +/-    0.85  0.120 / 0.170
G17     85.8           11.1               12.5 +/-    3.26      34.2 +/-    3.26  0.120 / 0.120
G19     75.0           26.6               10.2 +/-    1.70      19.3 +/-    1.70  0.130 / 0.140
G24     227.5          22.3               15.7 +/-    1.53      32.6 +/-    1.53  0.060 / 0.080
G25     316.9          29.2                9.8 +/-    1.40      17.5 +/-    1.40  0.050 / 0.070
G29     287.1          11.7                6.9 +/-   20.49      18.7 +/-   20.49  0.060 / 0.050