PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-23:12:30
G02     215.4          60.4               14.3 +/-    0.99      16.2 +/-    0.99  0.060 / 0.110
G06     65.0           77.8               12.1 +/-    0.52      12.4 +/-    0.52  0.060 / 0.090
G12     317.2          32.8                9.7 +/-    1.62      16.1 +/-    1.62  0.050 / 0.080
G17     56.9           32.1               10.9 +/-    2.48      18.3 +/-    2.48  0.060 / 0.090
G19     38.6           49.3               12.0 +/-    0.98      15.3 +/-    0.98  0.040 / 0.050
G24     264.7          41.8               16.5 +/-    2.25      23.3 +/-    2.25  0.040 / 0.050
G28     120.8          18.1               14.0 +/-    1.27      32.2 +/-    1.27  0.130 / 0.230