PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-17:58:10
G01     114.1          20.7               13.9 +/-    1.06      30.1 +/-    1.06  0.030 / 0.060
G07     99.2           57.6               11.4 +/-    0.55      13.2 +/-    0.55  0.040 / 0.060
G08     43.2           26.9                9.1 +/-    1.40      17.1 +/-    1.40  0.060 / 0.090
G09     176.9          22.4               10.9 +/-    1.22      22.5 +/-    1.22  0.070 / 0.090
G11     98.5           42.1               12.7 +/-    0.80      17.9 +/-    0.80  0.040 / 0.050
G13     314.7          24.1               10.2 +/-    2.30      20.3 +/-    2.30  0.040 / 0.050
G17     202.3          29.7               11.5 +/-    1.42      20.3 +/-    1.42  0.070 / 0.150
G18     86.9           22.3               10.6 +/-    1.48      22.2 +/-    1.48  0.090 / 0.140
G28     294.2          56.4               10.4 +/-    0.57      12.2 +/-    0.57  0.080 / 0.270
G30     3.8            74.1               11.6 +/-    0.94      12.0 +/-    0.94  0.080 / 0.260