PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-03:58:10
G07     344.7          61.9                4.8 +/-    0.38       5.3 +/-    0.38  0.030 / 0.030
G08     85.3           51.4                6.7 +/-    0.60       8.3 +/-    0.60  0.030 / 0.030
G09     178.8          64.6                6.3 +/-    0.39       6.9 +/-    0.39  0.090 / 0.080
G11     140.6          17.5                6.6 +/-    1.77      15.5 +/-    1.77  0.070 / 0.070
G23     158.1          38.1                6.4 +/-    0.66       9.6 +/-    0.66  0.070 / 0.080
G27     51.8           30.3                4.8 +/-    1.06       8.3 +/-    1.06  0.060 / 0.060
G28     241.1          32.1                5.7 +/-    1.58       9.6 +/-    1.58  0.030 / 0.020
G30     305.3          37.4                4.6 +/-    1.43       7.1 +/-    1.43  0.030 / 0.030