PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-15:58:00
G07     342.5          61.2               15.1 +/-    0.59      17.0 +/-    0.59  0.030 / 0.040
G08     90.5           53.5               14.9 +/-    0.67      18.0 +/-    0.67  0.050 / 0.050
G09     184.7          66.4               16.3 +/-    0.75      17.6 +/-    0.75  0.030 / 0.030
G11     142.1          17.2               14.2 +/-    3.94      33.5 +/-    3.94  0.030 / 0.030
G23     156.2          31.1               14.8 +/-    1.83      25.4 +/-    1.83  0.080 / 0.070
G27     49.2           27.8               12.2 +/-    2.65      22.4 +/-    2.65  0.100 / 0.090
G28     243.0          34.8               19.6 +/-    2.28      31.3 +/-    2.28  0.050 / 0.110
G30     307.6          40.0               14.5 +/-    1.40      21.1 +/-    1.40  0.060 / 0.080