PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-03:12:40
G08     305.0          21.2                6.8 +/-    1.28      14.6 +/-    1.28  0.060 / 0.120
G10     336.6          60.6                7.3 +/-    0.36       8.2 +/-    0.36  0.060 / 0.120
G14     220.2          35.9               11.5 +/-    1.48      17.9 +/-    1.48  0.030 / 0.040
G15     47.3           10.3                4.7 +/-    2.14      13.1 +/-    2.14  0.030 / 0.040
G18     41.6           58.9                6.9 +/-    0.51       7.9 +/-    0.51  0.050 / 0.090
G21     137.0          53.8                8.5 +/-    0.63      10.3 +/-    0.63  0.060 / 0.080
G24     71.6           30.3                6.0 +/-    0.72      10.5 +/-    0.72  0.030 / 0.060
G27     268.4          36.8                9.4 +/-    0.81      14.5 +/-    0.81  0.050 / 0.060
G32     226.8          54.7               10.3 +/-    0.86      12.3 +/-    0.86  0.080 / 0.090