PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/31-22:43:00
G10     254.2          28.7               16.4 +/-    1.48      29.5 +/-    1.48  0.040 / 0.050
G13     51.1           29.0               12.9 +/-    1.69      23.1 +/-    1.69  0.040 / 0.040
G15     79.8           56.8               16.6 +/-    0.90      19.5 +/-    0.90  0.100 / 0.140
G16     294.3          14.0               10.9 +/-    1.54      27.9 +/-    1.54  0.100 / 0.140
G18     275.2          58.1               16.6 +/-    1.13      19.1 +/-    1.13  0.040 / 0.070
G20     46.1           44.3               12.8 +/-    0.88      17.4 +/-    0.88  0.050 / 0.060
G21     340.1          63.7               14.0 +/-    0.76      15.4 +/-    0.76  0.040 / 0.050
G26     266.8          13.7               14.7 +/-    2.05      37.6 +/-    2.05  0.040 / 0.070
G29     164.5          41.9               17.8 +/-    1.16      25.1 +/-    1.16  0.060 / 0.070