PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-15:28:00
G02     201.7          21.1               10.0 +/-    2.07      21.4 +/-    2.07  0.070 / 0.310
G06     166.1          58.7                9.1 +/-    1.36      10.5 +/-    1.36  0.080 / 0.310
G12     302.5          11.1                3.9 +/-   16.17      10.5 +/-   16.17  0.080 / 0.140
G13     224.9          11.2                9.2 +/-    2.45      25.1 +/-    2.45  0.080 / 0.150
G17     26.5           56.7                7.7 +/-    0.49       9.0 +/-    0.49  0.170 / 0.330
G19     320.3          70.1                6.7 +/-    0.60       7.1 +/-    0.60  0.120 / 0.270
G24     307.0          32.9                7.6 +/-    1.59      12.6 +/-    1.59  0.080 / 0.180
G28     90.9           38.3                6.9 +/-    0.48      10.4 +/-    0.48  0.080 / 0.160
G30     158.0          13.3                8.2 +/-    1.21      21.3 +/-    1.21  0.150 / 0.310