PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-17:28:10
G07     42.0           69.9               13.3 +/-    1.02      14.1 +/-    1.02  0.030 / 0.050
G08     54.4           44.0               11.6 +/-    1.19      15.8 +/-    1.19  0.040 / 0.050
G09     178.6          39.4               15.4 +/-    2.41      22.6 +/-    2.41  0.060 / 0.050
G11     122.6          33.3               13.5 +/-    1.32      22.1 +/-    1.32  0.040 / 0.050
G18     107.0          15.1               14.7 +/-    1.70      36.5 +/-    1.70  0.070 / 0.080
G28     272.0          51.4               14.4 +/-    1.43      17.8 +/-    1.43  0.060 / 0.080
G30     330.7          58.7               11.7 +/-    0.80      13.4 +/-    0.80  0.030 / 0.040