PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-15:58:00
G07     349.2          63.2               16.5 +/-    0.82      18.2 +/-    0.82  0.040 / 0.080
G08     83.5           53.3               16.5 +/-    1.04      20.0 +/-    1.04  0.040 / 0.040
G09     182.6          62.2               18.9 +/-    0.93      21.0 +/-    0.93  0.040 / 0.030
G11     139.5          19.7               17.6 +/-    1.41      39.1 +/-    1.41  0.040 / 0.030
G23     157.1          27.4               17.8 +/-    1.08      32.9 +/-    1.08  0.090 / 0.070
G27     46.5           25.3               14.2 +/-    2.08      27.5 +/-    2.08  0.080 / 0.040
G28     246.5          37.6               20.4 +/-    1.47      30.8 +/-    1.47  0.070 / 0.120
G30     310.7          42.5               15.8 +/-    1.14      22.1 +/-    1.14  0.060 / 0.130