PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-19:27:50
G02     61.0           32.7               10.3 +/-    2.51      17.1 +/-    2.51  0.030 / 0.040
G05     54.2           58.7               10.6 +/-    0.80      12.1 +/-    0.80  0.030 / 0.030
G12     180.6          25.1               14.4 +/-    1.40      28.1 +/-    1.40  0.090 / 0.260
G13     124.9          17.6               12.3 +/-    1.46      28.7 +/-    1.46  0.090 / 0.310
G15     164.8          13.3               16.8 +/-    3.09      43.7 +/-    3.09  0.100 / 0.110
G21     273.8          18.5               11.0 +/-    1.76      25.2 +/-    1.76  0.120 / 0.100
G25     230.0          49.1               12.2 +/-    2.43      15.6 +/-    2.43  0.080 / 0.160
G29     329.5          56.6               11.5 +/-    0.48      13.4 +/-    0.48  0.120 / 0.130