PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/23-23:58:10
G02     243.8          76.8               15.4 +/-    0.48      15.8 +/-    0.48  0.070 / 0.090
G05     170.8          16.8               19.8 +/-    3.50      47.2 +/-    3.50  0.120 / 0.120
G06     39.9           61.4               11.9 +/-    0.53      13.4 +/-    0.53  0.030 / 0.050
G12     320.7          49.1               13.3 +/-    0.82      17.0 +/-    0.82  0.050 / 0.050
G17     71.0           21.6               12.8 +/-    1.90      27.1 +/-    1.90  0.250 / 0.330
G19     57.0           38.2               13.2 +/-    0.87      19.8 +/-    0.87  0.320 / 0.330
G24     243.7          34.5               18.2 +/-    2.25      29.2 +/-    2.25  0.040 / 0.030
G25     316.4          12.9                4.9 +/-   32.66      12.7 +/-   32.66  0.040 / 0.030