PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-16:12:50
G01     64.9           31.5                8.9 +/-    1.50      15.1 +/-    1.50  0.050 / 0.050
G07     139.2          22.7               12.2 +/-    1.91      25.2 +/-    1.91  0.050 / 0.060
G11     50.4           27.7                7.8 +/-    2.04      14.4 +/-    2.04  0.170 / 0.230
G13     267.8          37.6               10.8 +/-    2.84      16.4 +/-    2.84  0.090 / 0.210
G15     298.1          16.1               10.4 +/-    2.17      25.3 +/-    2.17  0.100 / 0.140
G17     239.4          71.0               12.3 +/-    0.77      13.0 +/-    0.77  0.140 / 0.140
G18     44.7           15.2                8.0 +/-    2.79      19.7 +/-    2.79  0.050 / 0.080
G19     226.9          47.1               11.4 +/-    2.22      15.0 +/-    2.22  0.050 / 0.080
G28     16.4           60.3               11.0 +/-    1.72      12.5 +/-    1.72  0.030 / 0.030
G30     139.5          54.9               11.5 +/-    0.62      13.7 +/-    0.62  0.030 / 0.040