PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-09:57:30
G07     351.1          63.6                3.4 +/-    0.83       3.7 +/-    0.83  0.070 / 0.200
G08     92.9           54.1                5.6 +/-    0.48       6.7 +/-    0.48  0.090 / 0.190
G09     184.5          66.3                5.4 +/-    1.78       5.8 +/-    1.78  0.050 / 0.090
G11     141.4          18.6                3.1 +/-    2.39       7.0 +/-    2.39  0.050 / 0.100
G23     156.4          31.0                5.2 +/-    0.88       9.0 +/-    0.88  0.030 / 0.040
G27     49.4           28.0                2.5 +/-    0.69       4.6 +/-    0.69  0.030 / 0.040
G28     240.9          29.1                4.5 +/-    1.69       8.0 +/-    1.69  0.090 / 0.390
G30     307.8          40.3                2.9 +/-    1.04       4.2 +/-    1.04  0.110 / 0.350