PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-23:57:40
G02     5.6            72.9                9.8 +/-    0.49      10.2 +/-    0.49  0.060 / 0.110
G05     159.7          41.0               15.0 +/-    1.53      21.5 +/-    1.53  0.060 / 0.090
G06     42.6           36.1                8.7 +/-    0.92      13.5 +/-    0.92  0.050 / 0.050
G12     299.7          74.6               10.9 +/-    0.86      11.3 +/-    0.86  0.050 / 0.040
G19     81.1           22.5                9.9 +/-    1.30      20.6 +/-    1.30  0.110 / 0.410
G24     222.5          17.7               15.2 +/-    2.25      35.3 +/-    2.25  0.130 / 0.330
G25     315.3          35.4               11.0 +/-    1.04      17.4 +/-    1.04  0.030 / 0.030
G29     292.2          15.8               10.0 +/-    1.55      24.4 +/-    1.55  0.030 / 0.030