PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-14:57:50
G01     46.0           22.1                5.2 +/-    2.40      10.8 +/-    2.40  0.170 / 0.200
G06     176.1          29.2                7.4 +/-    1.48      13.3 +/-    1.48  0.440 / 0.360
G11     43.8           12.0                4.9 +/-    1.73      13.2 +/-    1.73  0.030 / 0.030
G13     244.9          28.6                7.3 +/-    1.78      13.2 +/-    1.78  0.040 / 0.030
G15     279.5          14.8                5.1 +/-    1.37      12.9 +/-    1.37  0.040 / 0.050
G17     317.9          77.5                7.8 +/-    0.58       8.0 +/-    0.58  0.040 / 0.040
G19     254.5          64.7                7.9 +/-    0.65       8.6 +/-    0.65  0.040 / 0.050
G24     318.6          10.9              -12.9 +/-   23.20     -35.3 +/-   23.20  0.040 / 0.040
G28     50.5           55.1                7.3 +/-    0.76       8.7 +/-    0.76  0.100 / 0.120
G30     151.3          36.2                7.8 +/-    0.44      12.1 +/-    0.44  0.100 / 0.120