PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-13:28:00
G01     43.4           19.4                5.0 +/-    3.04      11.2 +/-    3.04  0.070 / 0.100
G06     174.9          33.4                7.2 +/-    0.84      11.7 +/-    0.84  0.070 / 0.110
G13     241.3          26.3                6.1 +/-    1.73      11.6 +/-    1.73  0.130 / 0.340
G15     276.6          13.8                4.9 +/-    1.20      12.5 +/-    1.20  0.180 / 0.270
G17     331.6          76.0                6.9 +/-    0.82       7.1 +/-    0.82  0.030 / 0.030
G19     263.4          67.5                7.7 +/-    0.54       8.3 +/-    0.54  0.030 / 0.020
G24     318.1          13.7                3.4 +/-    0.75       8.7 +/-    0.75  0.040 / 0.040
G28     55.8           54.0                6.6 +/-    0.55       8.0 +/-    0.55  0.040 / 0.040
G30     153.0          33.5                7.3 +/-    0.91      12.0 +/-    0.91  0.060 / 0.100