PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-16:58:00
G02     238.3          72.7               10.2 +/-    0.93      10.6 +/-    0.93  0.090 / 0.260
G05     172.4          15.5               13.3 +/-    1.80      32.7 +/-    1.80  0.080 / 0.210
G06     41.1           56.4               11.1 +/-    0.42      13.0 +/-    0.42  0.120 / 0.120
G12     323.0          56.6                8.0 +/-    1.54       9.3 +/-    1.54  0.080 / 0.120
G17     71.4           21.2                8.7 +/-    0.82      18.6 +/-    0.82  0.040 / 0.050
G19     53.8           41.8                9.9 +/-    0.69      13.9 +/-    0.69  0.030 / 0.050
G24     243.5          34.8               12.5 +/-    1.57      19.9 +/-    1.57  0.050 / 0.040
G25     316.6          12.8                8.4 +/-    1.48      22.0 +/-    1.48  0.030 / 0.040