PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-04:12:30
G02     32.4           55.7                3.1 +/-    0.89       3.7 +/-    0.89  0.140 / 0.230
G05     140.0          61.0                5.2 +/-    0.50       5.8 +/-    0.50  0.160 / 0.260
G06     51.1           21.3                2.9 +/-    3.04       6.2 +/-    3.04  0.030 / 0.030
G12     208.3          71.6                4.6 +/-    0.48       4.8 +/-    0.48  0.030 / 0.030
G19     98.3           10.8                5.3 +/-    2.61      14.6 +/-    2.61  0.030 / 0.030
G25     297.5          54.0                3.5 +/-    1.69       4.2 +/-    1.69  0.030 / 0.030
G29     308.8          31.7                3.5 +/-    1.53       6.0 +/-    1.53  0.040 / 0.050