PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-14:57:40
G01     247.3          34.1                9.3 +/-    1.15      15.1 +/-    1.15  0.050 / 0.050
G03     315.3          50.0                8.2 +/-    1.14      10.3 +/-    1.14  0.040 / 0.040
G11     233.9          9.9                 9.6 +/-    3.53      26.9 +/-    3.53  0.080 / 0.140
G14     63.6           38.4                7.3 +/-    0.62      10.9 +/-    0.62  0.080 / 0.130
G18     215.8          24.1                8.9 +/-    1.36      17.9 +/-    1.36  0.050 / 0.090
G22     296.2          72.0                8.5 +/-    1.29       8.9 +/-    1.29  0.070 / 0.080
G23     288.4          20.4                7.8 +/-    1.20      17.1 +/-    1.20  0.210 / 0.580
G26     139.0          38.9               11.0 +/-    1.08      16.3 +/-    1.08  0.230 / 0.720
G31     40.5           57.9                8.2 +/-    0.60       9.5 +/-    0.60  0.050 / 0.110
G32     77.5           24.8                8.2 +/-    1.01      16.1 +/-    1.01  0.060 / 0.110