PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-14:42:50
G01     110.1          23.0                9.1 +/-    1.95      18.7 +/-    1.95  0.030 / 0.040
G07     103.9          56.7                9.1 +/-    0.46      10.7 +/-    0.46  0.030 / 0.050
G08     42.7           25.3                7.4 +/-    1.00      14.4 +/-    1.00  0.040 / 0.050
G09     176.2          18.5                8.6 +/-    1.41      19.7 +/-    1.41  0.040 / 0.060
G11     93.9           43.2               10.0 +/-    0.53      13.8 +/-    0.53  0.040 / 0.100
G13     312.0          27.1                7.3 +/-    1.60      13.5 +/-    1.60  0.040 / 0.080
G17     204.1          31.7                9.7 +/-    1.03      16.4 +/-    1.03  0.080 / 0.250
G18     83.4           23.4                7.1 +/-    0.89      14.4 +/-    0.89  0.080 / 0.190
G28     299.7          57.3                8.9 +/-    0.91      10.4 +/-    0.91  0.050 / 0.120
G30     18.4           76.8                8.9 +/-    0.93       9.1 +/-    0.93  0.050 / 0.090