PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-11:12:40
G01     38.5           12.4                2.2 +/-    3.82       5.8 +/-    3.82  0.140 / 0.300
G06     172.3          43.5                5.3 +/-    1.24       7.2 +/-    1.24  0.370 / 0.320
G13     233.3          20.2                4.3 +/-    1.91       9.4 +/-    1.91  0.030 / 0.030
G15     267.9          10.8                3.5 +/-    1.52       9.6 +/-    1.52  0.030 / 0.030
G17     4.0            69.1                4.1 +/-    0.67       4.3 +/-    0.67  0.030 / 0.030
G19     292.8          71.9                3.6 +/-    0.52       3.8 +/-    0.52  0.030 / 0.030
G24     315.5          20.8                2.0 +/-    3.20       4.3 +/-    3.20  0.100 / 0.350
G28     68.8           50.6                3.4 +/-    0.81       4.3 +/-    0.81  0.120 / 0.280
G30     156.0          25.7                4.3 +/-    0.63       8.3 +/-    0.63  0.090 / 0.110