PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-03:28:00
G02     56.5           34.5                4.0 +/-    1.31       6.4 +/-    1.31  0.230 / 0.440
G05     63.7           63.4                5.4 +/-    0.64       6.0 +/-    0.64  0.170 / 0.370
G12     187.4          39.7                8.6 +/-    1.29      12.5 +/-    1.29  0.040 / 0.040
G13     130.6          12.1                6.1 +/-    2.66      16.2 +/-    2.66  0.040 / 0.070
G21     268.8          16.3                7.5 +/-    1.88      18.2 +/-    1.88  0.040 / 0.070
G25     241.7          54.7                7.6 +/-    1.41       9.1 +/-    1.41  0.060 / 0.070
G29     329.8          54.8                6.3 +/-    0.53       7.5 +/-    0.53  0.050 / 0.030