PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-22:27:50
G02     56.7           34.8                7.3 +/-    0.42      11.6 +/-    0.42  0.120 / 0.330
G05     62.0           62.9                9.1 +/-    1.16      10.1 +/-    1.16  0.110 / 0.290
G12     186.2          37.7               12.6 +/-    1.36      19.1 +/-    1.36  0.050 / 0.070
G13     129.2          12.9               12.2 +/-    2.39      31.9 +/-    2.39  0.050 / 0.070
G15     164.7          10.5                1.0 +/-   38.12       2.7 +/-   38.12  0.050 / 0.100
G21     269.1          15.0               12.6 +/-    1.41      31.2 +/-    1.41  0.050 / 0.100
G25     242.4          54.1               11.2 +/-    1.01      13.4 +/-    1.01  0.080 / 0.090
G29     327.9          53.0                8.2 +/-    1.11      10.0 +/-    1.11  0.060 / 0.080