PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-14:27:40
G01     37.5           10.4                7.5 +/-    3.07      20.8 +/-    3.07  0.040 / 0.070
G02     200.4          11.9                6.6 +/-   11.42      17.7 +/-   11.42  0.040 / 0.070
G06     171.9          46.5                8.7 +/-    1.41      11.5 +/-    1.41  0.260 / 0.370
G13     231.1          18.1                8.2 +/-    1.63      19.0 +/-    1.63  0.190 / 0.320
G17     4.3            68.1                8.5 +/-    0.83       9.1 +/-    0.83  0.110 / 0.170
G19     302.7          72.1                7.6 +/-    0.43       7.9 +/-    0.43  0.120 / 0.220
G24     314.0          23.7                6.9 +/-    2.99      13.9 +/-    2.99  0.160 / 0.490
G28     74.0           48.5                6.1 +/-    1.28       7.8 +/-    1.28  0.130 / 0.640
G30     156.0          21.0                8.4 +/-    2.05      18.0 +/-    2.05  0.190 / 0.280