PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/09-14:12:40
G03     315.2          49.3                6.9 +/-    1.03       8.8 +/-    1.03  0.040 / 0.070
G11     237.4          11.4                8.5 +/-    2.71      22.9 +/-    2.71  0.040 / 0.080
G14     60.2           42.1                7.1 +/-    1.60       9.9 +/-    1.60  0.210 / 0.580
G18     220.1          26.1                9.2 +/-    3.27      17.5 +/-    3.27  0.210 / 0.530
G22     296.5          72.6                8.7 +/-    0.55       9.1 +/-    0.55  0.030 / 0.040
G26     132.0          40.4               10.7 +/-    0.61      15.4 +/-    0.61  0.030 / 0.030
G31     40.9           54.2                7.7 +/-    0.65       9.3 +/-    0.65  0.050 / 0.060
G32     80.0           20.2                8.4 +/-    1.08      18.5 +/-    1.08  0.050 / 0.050