PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-01:27:40
G02     48.6           41.4               10.4 +/-    0.46      14.8 +/-    0.46  0.030 / 0.050
G05     87.3           68.5               11.0 +/-    0.60      11.7 +/-    0.60  0.040 / 0.040
G12     190.2          50.3               13.9 +/-    2.73      17.5 +/-    2.73  0.050 / 0.070
G25     261.8          58.4               12.8 +/-    0.54      14.8 +/-    0.54  0.050 / 0.070
G29     321.7          45.1               10.5 +/-    1.30      14.1 +/-    1.30  0.040 / 0.060