PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-10:28:00
G02     201.2          24.9                6.4 +/-    2.26      12.5 +/-    2.26  0.210 / 0.270
G06     165.8          59.9                8.2 +/-    0.50       9.3 +/-    0.50  0.190 / 0.300
G17     25.8           56.9                5.8 +/-    0.88       6.8 +/-    0.88  0.060 / 0.030
G19     344.4          69.5                5.0 +/-    0.58       5.3 +/-    0.58  0.050 / 0.030
G24     307.1          31.5                3.5 +/-    2.47       6.0 +/-    2.47  0.050 / 0.080
G28     88.0           43.3                8.2 +/-    1.14      11.3 +/-    1.14  0.060 / 0.080
G30     158.4          12.1                6.0 +/-    1.66      16.1 +/-    1.66  0.030 / 0.030