PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-22:43:10
G01     82.6           32.7                8.9 +/-    0.91      14.8 +/-    0.91  0.040 / 0.060
G07     130.8          35.3               12.4 +/-    1.15      19.6 +/-    1.15  0.050 / 0.080
G11     60.5           36.1                9.2 +/-    0.98      14.3 +/-    0.98  0.120 / 0.200
G13     286.7          38.1               13.0 +/-    1.50      19.6 +/-    1.50  0.120 / 0.100
G15     310.5          12.7                9.1 +/-    1.78      24.0 +/-    1.78  0.060 / 0.090
G17     218.7          61.5               12.1 +/-    1.26      13.6 +/-    1.26  0.060 / 0.090
G18     55.0           20.6                8.8 +/-    2.72      19.1 +/-    2.72  0.040 / 0.040
G19     217.1          32.3               12.4 +/-    1.82      20.7 +/-    1.82  0.040 / 0.050
G28     353.0          61.6                9.5 +/-    0.39      10.6 +/-    0.39  0.120 / 0.210
G30     121.0          70.9               10.8 +/-    0.82      11.4 +/-    0.82  0.210 / 0.310