PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/02-14:27:40
G07     352.4          63.6                8.1 +/-    1.17       8.9 +/-    1.17  0.100 / 0.200
G08     91.0           52.7                7.9 +/-    0.64       9.6 +/-    0.64  0.110 / 0.210
G09     188.2          69.3                8.2 +/-    0.73       8.7 +/-    0.73  0.040 / 0.050
G11     141.6          17.5                8.9 +/-    1.27      20.8 +/-    1.27  0.040 / 0.050
G23     156.5          34.5                8.9 +/-    1.08      14.2 +/-    1.08  0.110 / 0.310
G27     51.4           29.6                6.9 +/-    0.69      12.1 +/-    0.69  0.120 / 0.260
G28     239.7          28.7               10.9 +/-    2.40      19.6 +/-    2.40  0.080 / 0.120
G30     308.4          41.7                6.7 +/-    1.10       9.5 +/-    1.10  0.080 / 0.110