PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-04:27:30
G02     31.9           56.2                3.3 +/-    1.24       3.9 +/-    1.24  0.030 / 0.020
G05     141.1          60.4                5.8 +/-    0.72       6.5 +/-    0.72  0.030 / 0.020
G06     50.7           22.0                2.2 +/-    2.93       4.7 +/-    2.93  0.050 / 0.050
G12     209.6          72.2                4.7 +/-    0.76       4.9 +/-    0.76  0.060 / 0.040
G19     97.8           11.2                4.6 +/-    1.45      12.6 +/-    1.45  0.120 / 0.210
G25     298.2          53.8                3.5 +/-    1.92       4.3 +/-    1.92  0.150 / 0.160
G29     308.3          31.1                3.9 +/-    1.77       6.7 +/-    1.77  0.240 / 0.210