PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/01-00:13:00
G05     49.7           14.1                8.6 +/-    2.19      21.9 +/-    2.19  0.170 / 0.330
G10     237.7          15.8               13.3 +/-    1.42      32.5 +/-    1.42  0.170 / 0.230
G13     71.3           35.1               11.0 +/-    0.69      17.4 +/-    0.69  0.040 / 0.080
G15     118.3          54.1               13.5 +/-    0.41      16.3 +/-    0.41  0.060 / 0.070
G16     312.8          12.7                7.9 +/-    2.14      20.8 +/-    2.14  0.060 / 0.110
G20     250.8          38.9               13.2 +/-    1.16      19.5 +/-    1.16  0.070 / 0.100
G21     316.0          48.4               11.1 +/-    0.92      14.3 +/-    0.92  0.030 / 0.040
G26     285.5          19.7                7.7 +/-    1.83      17.0 +/-    1.83  0.030 / 0.040
G29     154.4          67.9               12.5 +/-    0.76      13.4 +/-    0.76  0.110 / 0.230