PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-09:27:50
G01     299.1          38.4                5.3 +/-    3.23       7.9 +/-    3.23  0.070 / 0.100
G03     309.9          14.9               -1.4 +/-   20.64      -3.4 +/-   20.64  0.080 / 0.080
G10     113.6          33.0                6.8 +/-    1.16      11.3 +/-    1.16  0.120 / 0.110
G11     272.2          27.2                4.7 +/-    0.90       8.8 +/-    0.90  0.080 / 0.080
G14     13.4           62.8                5.0 +/-    0.97       5.6 +/-    0.97  0.060 / 0.080
G18     261.5          50.2                4.8 +/-    8.71       6.0 +/-    8.71  0.060 / 0.070
G22     313.1          35.3                3.4 +/-    1.89       5.4 +/-    1.89  0.100 / 0.060
G25     74.3           17.8                3.6 +/-    1.59       8.4 +/-    1.59  0.090 / 0.060
G31     154.4          72.9                6.0 +/-    0.34       6.2 +/-    0.34  0.030 / 0.030
G32     40.2           50.2                4.8 +/-    1.38       6.0 +/-    1.38  0.030 / 0.040