PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-16:42:30
G02     303.9          80.2                8.3 +/-    0.61       8.4 +/-    0.61  0.040 / 0.050
G05     167.0          28.3               10.9 +/-    1.09      19.9 +/-    1.09  0.040 / 0.040
G06     40.3           43.8                7.4 +/-    0.55      10.1 +/-    0.55  0.110 / 0.200
G12     317.2          65.8                6.8 +/-    0.86       7.4 +/-    0.86  0.100 / 0.180
G17     80.2           17.1                8.9 +/-    1.23      21.0 +/-    1.23  0.040 / 0.030
G19     71.1           28.4                7.6 +/-    0.88      13.7 +/-    0.88  0.030 / 0.030
G24     233.0          25.9               11.0 +/-    1.55      21.0 +/-    1.55  0.090 / 0.160
G25     317.4          23.5                7.8 +/-    2.80      15.8 +/-    2.80  0.070 / 0.190