PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-19:27:30
G02     64.6           29.4                8.7 +/-    1.23      15.5 +/-    1.23  0.100 / 0.150
G05     50.0           54.7                8.2 +/-    0.30       9.8 +/-    0.30  0.080 / 0.120
G12     182.9          25.3               11.2 +/-    1.84      21.7 +/-    1.84  0.330 / 0.530
G13     120.2          20.1               11.4 +/-    1.89      25.1 +/-    1.89  0.150 / 0.430
G15     159.8          18.6               11.8 +/-    2.82      27.0 +/-    2.82  0.080 / 0.280
G21     277.7          21.2                9.8 +/-    2.70      20.8 +/-    2.70  0.090 / 0.250
G25     227.8          46.4                9.9 +/-    2.61      13.1 +/-    2.61  0.080 / 0.130
G29     334.4          62.2                8.7 +/-    0.45       9.8 +/-    0.45  0.080 / 0.120