PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-23:57:50
G02     57.0           34.4               11.4 +/-    2.46      18.3 +/-    2.46  0.070 / 0.050
G05     61.7           62.6               11.6 +/-    0.75      12.9 +/-    0.75  0.080 / 0.060
G12     186.6          38.0               15.6 +/-    1.28      23.5 +/-    1.28  0.080 / 0.090
G13     129.4          12.9               16.5 +/-    2.93      43.0 +/-    2.93  0.070 / 0.100
G15     164.5          10.6                1.3 +/-   34.23       3.5 +/-   34.23  0.110 / 0.260
G21     269.2          15.5               13.7 +/-    2.09      33.7 +/-    2.09  0.140 / 0.400
G25     241.8          54.1               14.5 +/-    3.42      17.4 +/-    3.42  0.050 / 0.080
G29     328.6          53.8               12.2 +/-    0.77      14.8 +/-    0.77  0.060 / 0.090