PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-01:42:50
G01     269.2          42.3                4.4 +/-    1.37       6.1 +/-    1.37  0.040 / 0.070
G03     315.7          28.1                2.9 +/-    1.24       5.2 +/-    1.24  0.040 / 0.050
G10     129.1          15.7                7.1 +/-    1.41      17.4 +/-    1.41  0.040 / 0.080
G11     252.6          19.4                7.0 +/-    1.98      15.7 +/-    1.98  0.040 / 0.070
G14     39.5           52.3                6.8 +/-    0.81       8.4 +/-    0.81  0.040 / 0.060
G18     233.7          39.4                7.1 +/-    2.29      10.4 +/-    2.29  0.040 / 0.060
G22     314.2          49.6                4.2 +/-    1.98       5.4 +/-    1.98  0.090 / 0.190
G25     54.2           17.0                3.5 +/-    1.15       8.3 +/-    1.15  0.080 / 0.190
G31     56.7           72.7               -2.9 +/-    0.54      -3.0 +/-    0.54  0.050 / 0.100
G32     63.5           32.6                5.0 +/-    0.42       8.3 +/-    0.42  0.060 / 0.110