PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-13:28:00
G07     22.3           67.8                5.3 +/-    0.71       5.6 +/-    0.71  0.060 / 0.140
G08     68.9           50.6                4.8 +/-    0.79       6.0 +/-    0.79  0.060 / 0.150
G09     181.2          53.9                7.9 +/-    0.44       9.5 +/-    0.44  0.090 / 0.190
G11     132.0          26.6                4.9 +/-    3.06       9.1 +/-    3.06  0.100 / 0.180
G23     158.7          19.6                7.1 +/-    1.70      15.8 +/-    1.70  0.030 / 0.030
G27     42.1           20.0                5.6 +/-    2.29      12.3 +/-    2.29  0.020 / 0.030
G28     252.1          38.6                6.0 +/-    1.25       8.9 +/-    1.25  0.130 / 0.180
G30     319.9          50.9                5.5 +/-    0.67       6.9 +/-    0.67  0.130 / 0.180