PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-01:42:50
G02     53.9           36.8                9.9 +/-    0.67      15.2 +/-    0.67  0.060 / 0.050
G05     69.7           65.4               11.7 +/-    0.41      12.7 +/-    0.41  0.070 / 0.060
G12     188.0          42.9               15.0 +/-    1.55      20.9 +/-    1.55  0.050 / 0.100
G13     132.7          10.1               -4.9 +/-   24.23     -13.7 +/-   24.23  0.050 / 0.100
G21     266.1          13.6               10.8 +/-    5.21      27.8 +/-    5.21  0.150 / 0.290
G25     248.3          56.3               13.2 +/-    0.82      15.5 +/-    0.82  0.140 / 0.240
G29     326.5          51.0               11.6 +/-    1.46      14.5 +/-    1.46  0.090 / 0.060