PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-15:42:40
G01     119.1          17.0               10.3 +/-    1.00      24.5 +/-    1.00  0.080 / 0.090
G07     86.9           62.5               11.6 +/-    1.13      12.9 +/-    1.13  0.130 / 0.100
G08     45.6           33.0                8.2 +/-    2.06      13.6 +/-    2.06  0.050 / 0.070
G09     177.8          28.3               10.9 +/-    1.40      19.7 +/-    1.40  0.050 / 0.080
G11     106.9          40.4               11.4 +/-    0.68      16.5 +/-    0.68  0.030 / 0.040
G13     317.7          19.7               10.1 +/-    1.19      22.3 +/-    1.19  0.030 / 0.030
G17     201.2          22.6               10.4 +/-    2.12      21.5 +/-    2.12  0.100 / 0.330
G18     93.6           20.4                9.8 +/-    2.11      21.4 +/-    2.11  0.260 / 0.410
G28     283.6          53.4               10.2 +/-    2.60      12.3 +/-    2.60  0.300 / 0.180
G30     353.0          70.5               10.9 +/-    1.01      11.5 +/-    1.01  0.280 / 0.180