PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-20:42:40
G02     199.8          18.9               15.7 +/-    2.03      35.4 +/-    2.03  0.050 / 0.070
G06     173.3          49.8               13.1 +/-    1.12      16.6 +/-    1.12  0.050 / 0.070
G13     227.8          14.8               15.3 +/-    1.50      38.2 +/-    1.50  0.070 / 0.130
G17     19.4           61.5               13.2 +/-    0.93      14.8 +/-    0.93  0.070 / 0.140
G19     316.7          71.6               10.9 +/-    0.50      11.5 +/-    0.50  0.160 / 0.350
G24     310.8          28.6               10.2 +/-    1.10      18.5 +/-    1.10  0.120 / 0.340
G28     81.7           44.7               10.5 +/-    1.24      14.2 +/-    1.24  0.050 / 0.050
G30     156.1          14.5               14.3 +/-    0.99      36.0 +/-    0.99  0.040 / 0.040