PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-15:28:10
G07     333.3          58.1               11.9 +/-    0.53      13.8 +/-    0.53  0.030 / 0.050
G08     100.6          52.5               13.3 +/-    0.55      16.3 +/-    0.55  0.030 / 0.050
G09     189.7          72.7               13.7 +/-    0.64      14.2 +/-    0.64  0.030 / 0.040
G11     145.8          13.5               12.9 +/-    2.42      33.3 +/-    2.42  0.040 / 0.060
G23     154.6          37.3               12.9 +/-    1.54      19.7 +/-    1.54  0.060 / 0.100
G27     54.2           31.2               11.4 +/-    1.09      19.4 +/-    1.09  0.060 / 0.110
G28     238.0          30.3               13.2 +/-    1.45      23.0 +/-    1.45  0.090 / 0.430
G30     302.8          35.9               13.5 +/-    0.95      21.0 +/-    0.95  0.100 / 0.420