PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-20:57:40
G02     247.5          77.1               13.1 +/-    0.69      13.4 +/-    0.69  0.080 / 0.110
G05     170.5          17.9               19.7 +/-    1.12      45.7 +/-    1.12  0.100 / 0.110
G06     39.9           57.9               12.8 +/-    0.49      14.8 +/-    0.49  0.150 / 0.240
G12     320.8          51.0               11.6 +/-    1.17      14.4 +/-    1.17  0.090 / 0.280
G17     71.3           22.1               11.0 +/-    0.85      23.0 +/-    0.85  0.030 / 0.060
G19     58.9           36.7               11.5 +/-    0.75      17.7 +/-    0.75  0.040 / 0.030
G24     243.3          33.7               16.6 +/-    1.04      27.0 +/-    1.04  0.040 / 0.060
G25     316.6          13.2               11.8 +/-    1.40      30.5 +/-    1.40  0.040 / 0.060