PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-14:12:30
G02     204.2          31.9                9.6 +/-    2.05      16.1 +/-    2.05  0.070 / 0.120
G06     156.3          69.6                8.6 +/-    0.64       9.1 +/-    0.64  0.090 / 0.120
G12     306.9          15.2                6.2 +/-    1.40      15.4 +/-    1.40  0.040 / 0.040
G17     32.6           51.8                7.2 +/-    1.85       8.8 +/-    1.85  0.030 / 0.040
G19     5.2            64.4                7.3 +/-    0.48       8.0 +/-    0.48  0.040 / 0.030
G24     298.3          37.3                7.4 +/-    3.85      11.3 +/-    3.85  0.040 / 0.040
G28     99.0           36.9                8.3 +/-    0.90      12.7 +/-    0.90  0.110 / 0.110