PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/30-23:28:00
G02     240.4          75.8                9.6 +/-    0.38       9.8 +/-    0.38  0.490 / 0.440
G05     171.2          15.9               16.3 +/-    1.05      39.7 +/-    1.05  0.260 / 0.320
G06     40.3           62.1                7.9 +/-    0.54       8.8 +/-    0.54  0.080 / 0.100
G12     320.7          48.1               10.1 +/-    0.54      13.1 +/-    0.54  0.090 / 0.090
G17     70.0           22.4                9.8 +/-    1.42      20.4 +/-    1.42  0.050 / 0.060
G19     56.0           38.8               10.7 +/-    1.17      15.9 +/-    1.17  0.040 / 0.040
G24     245.0          35.1               14.3 +/-    1.99      22.7 +/-    1.99  0.120 / 0.240
G25     316.1          11.9               -3.6 +/-   35.28      -9.7 +/-   35.28  0.130 / 0.350