PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-21:57:40
G02     9.7            70.8               11.3 +/-    1.03      11.9 +/-    1.03  0.060 / 0.090
G05     158.1          44.0               16.2 +/-    1.58      22.1 +/-    1.58  0.060 / 0.090
G06     44.1           32.2                9.6 +/-    1.15      16.1 +/-    1.15  0.040 / 0.040
G12     287.8          77.3               11.8 +/-    0.39      12.1 +/-    0.39  0.040 / 0.050
G19     84.0           20.3               12.9 +/-    1.43      28.2 +/-    1.43  0.210 / 0.320
G24     220.9          15.7               18.6 +/-    1.73      45.6 +/-    1.73  0.250 / 0.270
G25     314.2          37.6               12.7 +/-    1.22      19.3 +/-    1.22  0.030 / 0.030
G29     294.0          16.6               13.5 +/-    2.80      32.3 +/-    2.80  0.030 / 0.030