PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-17:27:40
G05     49.2           17.1               11.2 +/-    1.61      26.4 +/-    1.61  0.110 / 0.120
G10     237.4          12.9               16.3 +/-    2.37      42.7 +/-    2.37  0.110 / 0.140
G13     75.0           37.2               12.1 +/-    1.09      18.5 +/-    1.09  0.030 / 0.050
G15     119.7          53.3               14.0 +/-    0.36      17.0 +/-    0.36  0.040 / 0.060
G18     247.7          44.7               13.1 +/-    2.71      17.7 +/-    2.71  0.040 / 0.040
G20     27.6           65.9               12.3 +/-    0.64      13.4 +/-    0.64  0.050 / 0.040
G21     317.6          50.9               11.7 +/-    0.84      14.6 +/-    0.84  0.120 / 0.200
G26     290.0          18.9               10.5 +/-    1.20      23.8 +/-    1.20  0.120 / 0.170
G29     153.3          63.4               14.5 +/-    0.33      16.0 +/-    0.33  0.270 / 0.190