PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-23:57:40
G01     115.0          20.4                9.2 +/-    2.00      20.1 +/-    2.00  0.180 / 0.200
G07     95.4           60.7                7.7 +/-    1.04       8.7 +/-    1.04  0.120 / 0.190
G08     42.9           25.5                5.7 +/-    2.44      10.9 +/-    2.44  0.040 / 0.040
G09     176.1          21.7                8.3 +/-    1.50      17.5 +/-    1.50  0.050 / 0.060
G11     98.5           41.6                0.0 +/-    0.49       0.1 +/-    0.49  0.040 / 0.040
G13     315.2          23.3                5.3 +/-    1.37      10.8 +/-    1.37  0.030 / 0.040
G17     201.6          31.2                8.4 +/-    1.13      14.3 +/-    1.13  0.090 / 0.250
G18     85.2           21.7                7.5 +/-    2.08      15.9 +/-    2.08  0.110 / 0.170
G28     295.7          57.2                6.7 +/-    0.80       7.8 +/-    0.80  0.130 / 0.180
G30     353.7          72.0                6.7 +/-    0.66       7.0 +/-    0.66  0.130 / 0.230