PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-00:57:30
G02     29.2           58.3                9.0 +/-    0.66      10.3 +/-    0.66  0.040 / 0.050
G05     144.0          58.5               11.8 +/-    0.73      13.6 +/-    0.73  0.040 / 0.050
G06     50.2           21.5                6.4 +/-    1.23      13.5 +/-    1.23  0.070 / 0.060
G12     215.9          74.4               11.0 +/-    0.94      11.4 +/-    0.94  0.040 / 0.060
G19     96.1           11.9               10.9 +/-    1.22      29.2 +/-    1.22  0.110 / 0.310
G25     302.6          50.7                9.0 +/-    1.52      11.3 +/-    1.52  0.100 / 0.340
G29     305.6          27.8                6.9 +/-    0.95      12.7 +/-    0.95  0.030 / 0.030