PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-22:28:10
G02     58.5           33.4                8.7 +/-    1.25      14.3 +/-    1.25  0.090 / 0.090
G05     58.5           61.1               10.2 +/-    0.45      11.4 +/-    0.45  0.110 / 0.090
G12     185.7          35.3               12.5 +/-    1.44      19.7 +/-    1.44  0.060 / 0.090
G13     127.5          14.4               11.9 +/-    2.20      30.0 +/-    2.20  0.050 / 0.100
G15     163.5          12.2               13.9 +/-    6.03      37.0 +/-    6.03  0.140 / 0.440
G21     270.9          16.4               12.7 +/-    1.60      30.5 +/-    1.60  0.120 / 0.330
G25     238.7          52.7               11.3 +/-    4.36      13.8 +/-    4.36  0.200 / 0.310
G29     329.5          55.1               10.0 +/-    0.77      12.0 +/-    0.77  0.150 / 0.380