PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-19:43:10
G07     349.9          63.3               13.0 +/-    0.41      14.4 +/-    0.41  0.030 / 0.050
G08     87.1           54.6               12.7 +/-    1.62      15.2 +/-    1.62  0.030 / 0.040
G09     184.2          62.7               14.0 +/-    0.90      15.5 +/-    0.90  0.070 / 0.090
G11     140.5          19.5               16.1 +/-    1.54      35.8 +/-    1.54  0.060 / 0.100
G23     157.2          27.2               13.4 +/-    0.98      24.9 +/-    0.98  0.030 / 0.040
G27     46.0           24.7               10.4 +/-    1.56      20.4 +/-    1.56  0.030 / 0.040
G28     247.2          38.2               14.8 +/-    1.06      22.1 +/-    1.06  0.070 / 0.060
G30     312.5          44.5               12.6 +/-    0.78      17.1 +/-    0.78  0.060 / 0.070