PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-16:12:30
G02     213.9          54.4               12.3 +/-    1.07      14.7 +/-    1.07  0.090 / 0.250
G06     68.5           76.7               10.3 +/-    0.48      10.6 +/-    0.48  0.070 / 0.240
G12     316.6          31.8                8.6 +/-    1.56      14.6 +/-    1.56  0.040 / 0.060
G17     51.4           37.7                8.8 +/-    0.56      13.3 +/-    0.56  0.040 / 0.070
G19     36.4           50.3                9.6 +/-    0.62      12.0 +/-    0.62  0.030 / 0.030
G24     271.1          41.7                9.9 +/-    0.67      14.0 +/-    0.67  0.030 / 0.030
G28     118.1          22.0                9.4 +/-    2.22      19.8 +/-    2.22  0.050 / 0.070