PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/07-22:57:50
G02     83.3           14.4               11.3 +/-    4.17      28.6 +/-    4.17  0.130 / 0.130
G05     44.6           32.1                8.5 +/-    0.66      14.3 +/-    0.66  0.140 / 0.140
G13     97.5           32.4               12.8 +/-    1.67      21.3 +/-    1.67  0.220 / 0.280
G15     144.1          38.5               15.3 +/-    0.82      22.9 +/-    0.82  0.180 / 0.300
G20     234.4          22.6               12.5 +/-    3.19      25.8 +/-    3.19  0.130 / 0.150
G21     297.0          35.2               10.9 +/-    2.50      17.3 +/-    2.50  0.170 / 0.120
G25     209.5          26.6               14.3 +/-    1.93      27.0 +/-    1.93  0.070 / 0.130
G26     305.9          17.7                9.3 +/-    1.20      21.6 +/-    1.20  0.060 / 0.130
G29     34.7           85.6               11.5 +/-    0.39      11.6 +/-    0.39  0.050 / 0.070