PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/02-14:43:10
G07     8.4            66.3                8.5 +/-    0.48       9.2 +/-    0.48  0.080 / 0.140
G08     78.0           52.1                8.7 +/-    0.42      10.7 +/-    0.42  0.070 / 0.130
G09     183.5          61.2               12.8 +/-    1.28      14.4 +/-    1.28  0.030 / 0.040
G11     136.5          22.4                9.6 +/-    1.58      20.0 +/-    1.58  0.030 / 0.040
G23     158.1          27.0               10.0 +/-    1.22      18.6 +/-    1.22  0.080 / 0.180
G27     45.9           24.9                7.6 +/-    0.63      14.9 +/-    0.63  0.080 / 0.210
G28     246.0          34.3               12.7 +/-    0.93      20.4 +/-    0.93  0.060 / 0.130
G30     314.8          46.9                7.6 +/-    1.06      10.0 +/-    1.06  0.060 / 0.120