PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-00:12:50
G02     83.4391        15.7702          9.5904 +/-  1.0482   23.4113 +/-  1.0482  0.100 / 0.220
G05     44.7669        33.9054          8.5255 +/-  0.8332   13.8113 +/-  0.8332  0.090 / 0.160
G13     98.7600        34.3120         11.9029 +/-  1.1266   19.1345 +/-  1.1266  0.080 / 0.130
G15     146.8761       37.8087         13.8393 +/-  1.0405   20.8844 +/-  1.0405  0.060 / 0.110
G18     232.0050       26.9298         11.5400 +/-  1.8723   21.5880 +/-  1.8723  0.070 / 0.090
G20     6.5200         81.4918         10.0200 +/-  0.5008   10.1200 +/-  0.5008  0.060 / 0.080
G21     297.4699       36.3954         11.0037 +/-  1.2580   17.0238 +/-  1.2580  0.110 / 0.300
G25     204.3759       22.0956         13.6803 +/-  2.3909   28.6141 +/-  2.3909  0.140 / 0.300
G26     305.3143       18.2148          8.5161 +/-  1.2999   19.5767 +/-  1.2999  0.100 / 0.160
G29     70.0501        87.1035         10.9762 +/-  0.4654   10.9888 +/-  0.4654  0.110 / 0.180