PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-04:42:40
G02     231.2          72.5                4.2 +/-    0.61       4.4 +/-    0.61  0.240 / 0.460
G05     173.4          12.1                1.7 +/-    4.58       4.6 +/-    4.58  0.270 / 0.340
G06     42.3           68.5                3.0 +/-    0.50       3.2 +/-    0.50  0.040 / 0.030
G12     320.5          44.9                1.9 +/-    0.42       2.5 +/-    0.42  0.030 / 0.030
G17     67.9           23.1                2.3 +/-    2.14       4.7 +/-    2.14  0.050 / 0.090
G19     51.0           42.4                2.7 +/-    1.36       3.8 +/-    1.36  0.060 / 0.070
G24     247.0          37.2                4.0 +/-    0.98       6.1 +/-    0.98  0.030 / 0.050
G25     315.5          11.2              -11.5 +/-   23.92     -31.2 +/-   23.92  0.030 / 0.050