PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/05-15:42:50
G01     117.5          18.2               12.4 +/-    1.66      28.6 +/-    1.66  0.030 / 0.040
G07     90.6           61.5               13.4 +/-    1.01      15.0 +/-    1.01  0.030 / 0.040
G08     44.8           31.5               10.0 +/-    0.71      16.9 +/-    0.71  0.040 / 0.060
G09     177.5          26.4               14.9 +/-    1.81      28.2 +/-    1.81  0.040 / 0.070
G11     104.6          41.1               15.4 +/-    1.00      22.0 +/-    1.00  0.050 / 0.090
G13     316.8          21.1               10.2 +/-    2.88      21.9 +/-    2.88  0.050 / 0.100
G17     201.6          24.4               14.6 +/-    1.79      28.9 +/-    1.79  0.110 / 0.310
G18     91.7           21.1               11.6 +/-    0.67      24.9 +/-    0.67  0.110 / 0.350
G28     286.6          54.3               14.2 +/-    0.87      17.0 +/-    0.87  0.130 / 0.320
G30     357.3          71.9               13.5 +/-    0.65      14.1 +/-    0.65  0.120 / 0.300