PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-02:27:50
G02     29.8           58.5                9.3 +/-    0.45      10.7 +/-    0.45  0.030 / 0.030
G05     144.0          58.2               12.9 +/-    0.81      14.9 +/-    0.81  0.030 / 0.040
G06     51.1           19.7                6.2 +/-    2.97      13.8 +/-    2.97  0.040 / 0.050
G12     209.1          73.4               11.6 +/-    0.64      12.1 +/-    0.64  0.030 / 0.040
G19     95.6           13.8                9.2 +/-    1.05      23.5 +/-    1.05  0.030 / 0.050
G25     304.4          49.0                9.3 +/-    1.58      11.8 +/-    1.58  0.030 / 0.040
G29     303.5          23.8                8.7 +/-    2.19      17.6 +/-    2.19  0.050 / 0.070