PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-16:58:00
G02     241.6          74.1               10.6 +/-    0.54      10.9 +/-    0.54  0.140 / 0.420
G05     171.9          16.0                9.9 +/-    2.19      23.9 +/-    2.19  0.160 / 0.410
G06     40.3           57.4               10.6 +/-    0.91      12.3 +/-    0.91  0.040 / 0.050
G12     321.1          51.3                9.2 +/-    0.94      11.5 +/-    0.94  0.040 / 0.040
G17     68.9           25.1               10.1 +/-    1.62      19.6 +/-    1.62  0.050 / 0.040
G19     58.1           36.9                9.3 +/-    0.40      14.2 +/-    0.40  0.040 / 0.050
G24     245.6          34.4               12.1 +/-    1.00      19.4 +/-    1.00  0.090 / 0.120
G25     316.3          11.6                4.1 +/-   30.14      11.0 +/-   30.14  0.090 / 0.120