PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-15:13:10
G07     90.0           61.8               10.3 +/-    1.54      11.6 +/-    1.54  0.030 / 0.040
G08     45.0           31.9                7.6 +/-    1.59      12.8 +/-    1.59  0.030 / 0.050
G09     177.5          26.6               11.9 +/-    2.01      22.5 +/-    2.01  0.050 / 0.070
G11     104.9          41.0               11.0 +/-    2.18      15.7 +/-    2.18  0.050 / 0.090
G13     316.9          21.0                9.5 +/-    5.89      20.4 +/-    5.89  0.090 / 0.170
G17     201.6          23.9                9.7 +/-    1.85      19.5 +/-    1.85  0.070 / 0.200
G18     91.9           21.0                9.5 +/-    2.51      20.4 +/-    2.51  0.060 / 0.140
G30     356.0          71.6               10.1 +/-    1.19      10.5 +/-    1.19  0.060 / 0.100