PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-16:28:10
G07     335.1          58.7               10.4 +/-    0.96      12.0 +/-    0.96  0.030 / 0.050
G08     99.5           53.0               11.4 +/-    0.73      13.9 +/-    0.73  0.030 / 0.040
G09     189.2          71.6               13.7 +/-    0.94      14.3 +/-    0.94  0.070 / 0.090
G11     145.3          14.2               12.8 +/-    2.80      32.6 +/-    2.80  0.050 / 0.100
G23     154.7          35.2               11.2 +/-    1.26      17.7 +/-    1.26  0.120 / 0.480
G27     53.0           30.4               10.7 +/-    0.85      18.5 +/-    0.85  0.170 / 0.460
G28     239.1          31.3               11.1 +/-    0.99      18.9 +/-    0.99  0.030 / 0.040
G30     304.1          37.1                9.8 +/-    1.18      15.0 +/-    1.18  0.040 / 0.050