PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-02:12:50
G10     267.2447       37.5209          9.4167 +/-  1.2882   14.2816 +/-  1.2882  0.080 / 0.100
G13     42.2087        19.2265          7.6369 +/-  0.7478   17.1246 +/-  0.7478  0.080 / 0.080
G15     61.1736        51.1553         10.5918 +/-  0.5738   13.1729 +/-  0.5738  0.040 / 0.050
G16     279.8262       11.3589          7.7276 +/-  2.4443   20.9318 +/-  2.4443  0.040 / 0.070
G18     298.3685       63.4334          8.2761 +/-  0.5669    9.1379 +/-  0.5669  0.120 / 0.230
G20     55.6404        32.8855          7.7747 +/-  0.9901   12.8452 +/-  0.9901  0.080 / 0.230
G21     2.7607         72.1189         10.0627 +/-  0.4325   10.5181 +/-  0.4325  0.190 / 0.460
G24     121.0404       14.1085         12.3943 +/-  1.2134   31.4987 +/-  1.2134  0.150 / 0.580
G27     317.4980       20.6554          6.3762 +/-  3.3906   13.8076 +/-  3.3906  0.190 / 0.380
G29     167.5634       29.0468         10.8152 +/-  0.6407   19.3233 +/-  0.6407  0.220 / 0.310