PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-21:12:50
G02     53.1           39.1               -8.1 +/-   47.57     -11.9 +/-   47.57  0.050 / 0.070
G05     76.9           69.4               11.9 +/-    0.60      12.6 +/-    0.60  0.050 / 0.070
G12     185.8          38.4               14.3 +/-    2.34      21.4 +/-    2.34  0.050 / 0.060
G13     134.4          11.0               10.2 +/-   33.18      27.9 +/-   33.18  0.040 / 0.060
G20     203.9          54.6                9.7 +/-    8.84      11.6 +/-    8.84  0.020 / 0.040
G21     266.1          13.7               14.0 +/-    2.73      36.0 +/-    2.73  0.030 / 0.040
G25     237.8          55.2               14.4 +/-    0.80      17.1 +/-    0.80  0.110 / 0.310
G29     325.8          51.0               11.8 +/-    0.94      14.8 +/-    0.94  0.110 / 0.330