PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-20:27:50
G01     91.1           31.7               13.6 +/-    0.73      23.0 +/-    0.73  0.070 / 0.130
G07     124.8          46.7               14.5 +/-    0.86      19.1 +/-    0.86  0.080 / 0.160
G08     42.5           11.3                9.5 +/-    2.87      25.7 +/-    2.87  0.130 / 0.240
G11     71.1           41.0               12.5 +/-    1.64      17.8 +/-    1.64  0.240 / 0.290
G13     295.7          35.5               13.6 +/-    2.76      21.3 +/-    2.76  0.080 / 0.120
G17     214.8          48.4               15.8 +/-    1.02      20.3 +/-    1.02  0.090 / 0.110
G18     65.1           24.2               11.4 +/-    1.87      22.7 +/-    1.87  0.020 / 0.030
G19     214.4          25.5               16.9 +/-    1.93      32.6 +/-    1.93  0.030 / 0.030
G28     348.4          61.8               12.8 +/-    0.49      14.3 +/-    0.49  0.040 / 0.060
G30     104.4          75.0               14.9 +/-    0.66      15.3 +/-    0.66  0.040 / 0.050