PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-11:27:30
G02     62.2           29.0                5.9 +/-    1.73      10.5 +/-    1.73  0.020 / 0.030
G05     56.7           61.5                6.3 +/-    0.60       7.0 +/-    0.60  0.030 / 0.030
G12     182.0          29.3                7.8 +/-    1.38      13.8 +/-    1.38  0.080 / 0.070
G13     124.9          16.1                8.1 +/-    1.45      19.6 +/-    1.45  0.090 / 0.060
G15     160.0          15.7                4.7 +/-    2.41      11.5 +/-    2.41  0.030 / 0.030
G21     273.6          19.0                6.8 +/-    1.99      15.4 +/-    1.99  0.030 / 0.030
G25     233.5          50.7                7.7 +/-    3.28       9.6 +/-    3.28  0.140 / 0.170
G29     329.2          55.3                5.2 +/-    0.73       6.2 +/-    0.73  0.090 / 0.210