PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-10:42:50
G03     206.1399       48.0145          4.1962 +/-  2.1543    5.4268 +/-  2.1543  0.060 / 0.050
G07     267.8419       25.4031          5.6781 +/-  2.3179   10.9929 +/-  2.3179  0.030 / 0.040
G09     316.3064       39.7693          4.2215 +/-  1.5779    6.1633 +/-  1.5779  0.080 / 0.100
G16     67.7641        61.9486          5.2693 +/-  0.5500    5.8866 +/-  0.5500  0.060 / 0.140
G22     183.4071       29.3710          3.3406 +/-  1.9942    5.9278 +/-  1.9942  0.040 / 0.050
G23     340.8090       69.0015          3.2922 +/-  0.9878    3.5003 +/-  0.9878  0.040 / 0.040
G26     46.6254        34.9846          2.4290 +/-  0.5328    3.8559 +/-  0.5328  0.050 / 0.080
G27     123.7948       18.9091          4.1537 +/-  2.2001    9.3869 +/-  2.2001  0.050 / 0.070