PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-22:43:00
G02     57.7           34.0                8.7 +/-    2.46      14.2 +/-    2.46  0.070 / 0.060
G05     60.0           61.9               10.7 +/-    0.60      12.0 +/-    0.60  0.050 / 0.100
G12     186.0          36.4               11.5 +/-    1.27      17.8 +/-    1.27  0.090 / 0.090
G13     128.3          13.7               12.7 +/-    1.94      32.6 +/-    1.94  0.050 / 0.090
G15     164.0          11.4               12.0 +/-   12.66      32.3 +/-   12.66  0.160 / 0.400
G21     270.0          15.8               11.5 +/-    2.76      28.0 +/-    2.76  0.160 / 0.470
G25     240.3          53.4               10.5 +/-    4.30      12.8 +/-    4.30  0.060 / 0.090
G29     328.8          54.2                9.8 +/-    0.40      11.8 +/-    0.40  0.080 / 0.090