PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-21:12:50
G02     55.9           35.7               10.8 +/-    1.82      16.9 +/-    1.82  0.050 / 0.060
G05     63.5           63.8               10.4 +/-    0.67      11.4 +/-    0.67  0.060 / 0.060
G12     186.0          38.0               12.1 +/-    1.40      18.2 +/-    1.40  0.070 / 0.090
G13     129.6          12.5               14.3 +/-    3.50      37.8 +/-    3.50  0.050 / 0.070
G15     165.3          9.9                -9.2 +/-    5.29     -25.6 +/-    5.29  0.100 / 0.540
G21     268.5          14.4               11.4 +/-    3.20      28.7 +/-    3.20  0.170 / 0.490
G25     243.8          54.4               12.2 +/-    1.79      14.6 +/-    1.79  0.220 / 0.430
G29     327.0          51.9               11.4 +/-    1.04      14.1 +/-    1.04  0.190 / 0.350