PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-00:12:30
G05     46.3           23.1                7.2 +/-    2.37      14.7 +/-    2.37  0.180 / 0.530
G13     85.4           35.1               11.8 +/-    0.95      18.7 +/-    0.95  0.190 / 0.330
G15     134.1          46.7               11.7 +/-    0.44      15.4 +/-    0.44  0.060 / 0.100
G20     241.3          30.4               11.8 +/-    1.72      20.5 +/-    1.72  0.080 / 0.080
G21     305.8          41.4               10.6 +/-    0.86      15.1 +/-    0.86  0.080 / 0.120
G25     204.0          18.2               12.3 +/-    2.15      28.3 +/-    2.15  0.070 / 0.120
G26     296.9          19.7                9.0 +/-    1.00      19.9 +/-    1.00  0.030 / 0.060
G29     138.1          80.0               11.1 +/-    0.33      11.3 +/-    0.33  0.030 / 0.060