PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-07:12:50
G01     37.9           11.3                2.8 +/-    1.91       7.6 +/-    1.91  0.080 / 0.160
G02     198.8          12.9                3.9 +/-    6.52      10.2 +/-    6.52  0.080 / 0.170
G06     172.4          43.9                8.9 +/-    0.67      12.1 +/-    0.67  0.110 / 0.220
G13     232.6          19.8                6.0 +/-    4.05      13.3 +/-    4.05  0.100 / 0.180
G15     264.7          10.7                5.2 +/-    1.82      14.3 +/-    1.82  0.040 / 0.060
G17     10.2           67.1               -0.2 +/-    0.53      -0.2 +/-    0.53  0.040 / 0.060
G19     296.2          72.3                7.0 +/-    0.57       7.3 +/-    0.57  0.040 / 0.030
G24     315.2          21.3                2.7 +/-    3.17       5.7 +/-    3.17  0.030 / 0.040
G28     68.5           51.2                6.1 +/-    1.17       7.6 +/-    1.17  0.030 / 0.030
G30     156.8          26.7                6.4 +/-    2.21      12.0 +/-    2.21  0.040 / 0.030