PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-01:58:10
G02     14.7           69.3                9.1 +/-    0.64       9.6 +/-    0.64  0.030 / 0.030
G05     156.7          45.5               13.4 +/-    0.58      17.9 +/-    0.58  0.020 / 0.080
G06     45.3           30.3                7.7 +/-    0.62      13.3 +/-    0.62  0.040 / 0.060
G12     273.0          79.3               10.9 +/-    1.19      11.1 +/-    1.19  0.030 / 0.060
G19     84.5           21.5                9.5 +/-    1.29      20.1 +/-    1.29  0.040 / 0.050
G24     220.4          15.1               13.4 +/-    2.93      33.2 +/-    2.93  0.040 / 0.040
G25     314.2          38.0               10.4 +/-    1.81      15.6 +/-    1.81  0.050 / 0.090
G29     294.1          15.1                8.8 +/-    2.33      21.7 +/-    2.33  0.050 / 0.080