PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-22:12:00
G02     45.0           44.7                8.8 +/-    0.52      11.9 +/-    0.52  0.040 / 0.050
G05     99.5           69.2               10.1 +/-    0.53      10.7 +/-    0.53  0.040 / 0.070
G12     190.7          53.7               11.1 +/-    1.64      13.4 +/-    1.64  0.070 / 0.090
G25     270.9          58.3               10.6 +/-    0.69      12.3 +/-    0.69  0.060 / 0.060
G29     318.0          40.5               11.2 +/-    1.40      16.1 +/-    1.40  0.030 / 0.050