PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-14:12:50
G01     61.2           30.5                7.8 +/-    0.80      13.5 +/-    0.80  0.050 / 0.050
G07     140.8          20.8                7.0 +/-    1.86      15.0 +/-    1.86  0.040 / 0.060
G11     48.9           25.8                6.3 +/-    1.80      12.1 +/-    1.80  0.030 / 0.040
G13     263.6          36.8                9.2 +/-    1.81      14.2 +/-    1.81  0.030 / 0.030
G15     295.6          16.2                6.7 +/-    1.17      16.2 +/-    1.17  0.140 / 0.300
G17     245.4          71.9                9.0 +/-    0.65       9.4 +/-    0.65  0.100 / 0.310
G18     42.7           13.5                5.2 +/-    2.69      13.5 +/-    2.69  0.100 / 0.080
G19     229.9          50.5               10.7 +/-    2.82      13.4 +/-    2.82  0.110 / 0.090
G28     21.2           59.9                7.8 +/-    1.02       8.9 +/-    1.02  0.240 / 0.150
G30     142.3          53.5                9.3 +/-    0.76      11.3 +/-    0.76  0.120 / 0.180