PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-13:42:40
G07     338.2          60.1                5.9 +/-    0.96       6.7 +/-    0.96  0.030 / 0.050
G08     104.6          51.2                7.2 +/-    1.11       8.9 +/-    1.11  0.030 / 0.050
G09     200.2          77.1                5.1 +/-    1.08       5.2 +/-    1.08  0.090 / 0.280
G11     146.6          12.6                8.8 +/-    2.38      23.2 +/-    2.38  0.090 / 0.280
G23     153.9          42.0                7.1 +/-    1.13      10.1 +/-    1.13  0.120 / 0.430
G27     58.4           33.5                4.4 +/-    0.49       7.1 +/-    0.49  0.090 / 0.390
G28     234.1          22.7                8.4 +/-    1.14      17.3 +/-    1.14  0.060 / 0.080
G30     302.1          36.7                6.1 +/-    1.03       9.4 +/-    1.03  0.040 / 0.080