PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-15:42:50
G02     213.5          53.5                9.7 +/-    0.67      11.7 +/-    0.67  0.080 / 0.170
G06     70.6           76.9                9.1 +/-    0.46       9.3 +/-    0.46  0.070 / 0.200
G12     316.4          31.5                9.6 +/-    2.25      16.2 +/-    2.25  0.070 / 0.080
G17     50.6           38.5                8.8 +/-    1.25      13.1 +/-    1.25  0.070 / 0.080
G19     35.7           50.7                8.0 +/-    1.10      10.0 +/-    1.10  0.050 / 0.070
G24     272.0          41.7                9.6 +/-    1.34      13.6 +/-    1.34  0.080 / 0.080
G28     117.5          22.6                8.6 +/-    1.90      17.7 +/-    1.90  0.040 / 0.040