PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-16:12:30
G07     357.1          64.4                9.9 +/-    0.82      10.8 +/-    0.82  0.070 / 0.130
G08     87.3           52.4                9.1 +/-    0.68      11.2 +/-    0.68  0.170 / 0.190
G09     187.2          67.9                9.8 +/-    0.52      10.5 +/-    0.52  0.030 / 0.040
G11     140.5          18.3               11.3 +/-    1.03      25.9 +/-    1.03  0.030 / 0.050
G23     157.2          34.3               10.9 +/-    0.66      17.5 +/-    0.66  0.080 / 0.060
G27     50.5           29.1                9.4 +/-    1.25      16.8 +/-    1.25  0.060 / 0.060
G28     240.9          30.1               10.4 +/-    2.03      18.1 +/-    2.03  0.080 / 0.080
G30     308.7          41.6                8.7 +/-    0.87      12.3 +/-    0.87  0.080 / 0.120