PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-10:28:10
G03     211.7628       54.1906          4.3633 +/-  1.1869    5.2437 +/-  1.1869  0.040 / 0.050
G07     262.4258       21.5797          3.4397 +/-  2.3678    7.2841 +/-  2.3678  0.040 / 0.050
G09     313.5847       34.2975          2.7490 +/-  1.3707    4.4203 +/-  1.3707  0.060 / 0.070
G16     82.6262        64.6904          5.9527 +/-  0.7914    6.5114 +/-  0.7914  0.080 / 0.120
G22     185.1663       35.7186          4.4400 +/-  2.9434    6.9537 +/-  2.9434  0.050 / 0.040
G23     333.7031       63.3061          5.0756 +/-  0.6274    5.6096 +/-  0.6274  0.040 / 0.050
G26     50.1298        40.2877          3.6924 +/-  0.8732    5.3454 +/-  0.8732  0.080 / 0.100
G27     128.8077       14.6683          5.0002 +/-  2.5211   12.5376 +/-  2.5211  0.090 / 0.110