PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/06-15:57:50
G07     29.7           69.5               13.4 +/-    0.46      14.2 +/-    0.46  0.040 / 0.090
G08     57.9           46.0               12.0 +/-    0.91      16.0 +/-    0.91  0.040 / 0.050
G09     178.7          43.4               15.1 +/-    0.74      20.9 +/-    0.74  0.030 / 0.030
G11     126.0          30.8               14.9 +/-    1.82      25.6 +/-    1.82  0.030 / 0.030
G18     110.4          13.0               12.1 +/-    2.80      31.6 +/-    2.80  0.040 / 0.050
G23     159.3          11.5               13.4 +/-    2.26      36.2 +/-    2.26  0.030 / 0.040
G27     38.6           12.8                9.2 +/-    2.44      24.0 +/-    2.44  0.170 / 0.270
G28     266.0          48.9               15.0 +/-    4.75      19.2 +/-    4.75  0.250 / 0.360
G30     325.6          54.9               13.0 +/-    0.62      15.5 +/-    0.62  0.140 / 0.350