PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-23:27:40
G02     359.7          74.9               11.5 +/-    0.68      11.8 +/-    0.68  0.080 / 0.110
G05     161.1          38.5               15.6 +/-    0.89      23.3 +/-    0.89  0.100 / 0.120
G06     41.9           38.0                9.2 +/-    0.52      13.8 +/-    0.52  0.120 / 0.240
G12     305.8          72.6               11.7 +/-    0.93      12.2 +/-    0.93  0.130 / 0.260
G19     78.9           23.9               11.9 +/-    1.13      23.8 +/-    1.13  0.030 / 0.030
G24     224.4          19.4               16.4 +/-    1.69      36.7 +/-    1.69  0.030 / 0.030
G25     316.0          33.0               10.2 +/-    2.43      16.8 +/-    2.43  0.030 / 0.040
G29     290.3          14.1               12.6 +/-    1.83      32.1 +/-    1.83  0.030 / 0.040