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               13.5 +/-    2.41      29.2 +/-    2.41  0.030 / 0.030
G07     99.2           57.6               11.9 +/-    1.10      13.8 +/-    1.10  0.030 / 0.030
G08     43.2           26.9                8.3 +/-    1.07      15.6 +/-    1.07  0.040 / 0.040
G09     176.9          22.4               11.8 +/-    1.39      24.6 +/-    1.39  0.040 / 0.040
G11     98.5           42.1               12.3 +/-    0.62      17.3 +/-    0.62  0.040 / 0.060
G13     314.7          24.1                9.2 +/-    1.26      18.3 +/-    1.26  0.060 / 0.070
G17     202.3          29.7               11.3 +/-    1.09      19.8 +/-    1.09  0.130 / 0.200
G18     86.9           22.3               10.6 +/-    2.34      22.1 +/-    2.34  0.110 / 0.210
G28     294.2          56.4               11.4 +/-    1.40      13.3 +/-    1.40  0.080 / 0.160
G30     3.8            74.1               13.0 +/-    0.55      13.4 +/-    0.55  0.070 / 0.170