PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-13:27:50
G02     202.1          22.4                5.8 +/-    1.07      12.2 +/-    1.07  0.100 / 0.110
G06     166.1          59.8                8.2 +/-    0.99       9.4 +/-    0.99  0.090 / 0.110
G13     222.5          10.2                6.0 +/-    3.70      16.7 +/-    3.70  0.040 / 0.090
G17     23.1           58.5                5.8 +/-    0.46       6.7 +/-    0.46  0.040 / 0.100
G19     343.3          69.6                6.2 +/-    0.56       6.6 +/-    0.56  0.190 / 0.710
G24     306.8          31.9                6.3 +/-    2.14      10.6 +/-    2.14  0.290 / 0.830
G28     88.6           42.6                7.0 +/-    0.59       9.7 +/-    0.59  0.040 / 0.040
G30     157.8          10.8                6.7 +/-    3.47      18.5 +/-    3.47  0.040 / 0.040