PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-21:13:10
G07     334.3          58.4               10.0 +/-    0.40      11.5 +/-    0.40  0.100 / 0.140
G08     101.8          52.9               13.5 +/-    0.44      16.5 +/-    0.44  0.110 / 0.150
G09     192.8          73.1               12.0 +/-    0.55      12.4 +/-    0.55  0.070 / 0.090
G11     147.4          13.0               16.0 +/-    1.41      41.8 +/-    1.41  0.060 / 0.090
G23     155.2          38.1               12.5 +/-    0.75      18.8 +/-    0.75  0.030 / 0.040
G27     53.2           30.4               10.4 +/-    1.96      18.0 +/-    1.96  0.030 / 0.030
G28     238.7          31.2               12.8 +/-    1.78      21.9 +/-    1.78  0.030 / 0.040
G30     305.3          38.9                9.7 +/-    1.49      14.4 +/-    1.49  0.030 / 0.040