PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-17:28:10
G02     8.1            70.5              -20.0 +/-    0.78     -21.1 +/-    0.78  0.170 / 0.380
G05     158.6          45.4               10.9 +/-    0.96      14.6 +/-    0.96  0.150 / 0.450
G06     45.4           28.5                6.5 +/-    1.45      11.8 +/-    1.45  0.090 / 0.090
G12     268.5          79.7                7.9 +/-    1.24       8.1 +/-    1.24  0.140 / 0.130
G19     86.2           18.2                7.4 +/-    1.69      17.0 +/-    1.69  0.110 / 0.170
G24     220.3          14.3               12.5 +/-    3.80      31.5 +/-    3.80  0.100 / 0.160
G25     313.3          39.0                8.0 +/-    0.70      11.9 +/-    0.70  0.060 / 0.040
G29     294.8          16.4                9.1 +/-    0.96      22.0 +/-    0.96  0.040 / 0.040