PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-20:12:40
G07     341.1          60.9               13.2 +/-    0.51      14.9 +/-    0.51  0.030 / 0.050
G08     95.7           51.3               15.2 +/-    0.44      18.9 +/-    0.44  0.030 / 0.040
G09     192.4          74.1               15.0 +/-    0.37      15.5 +/-    0.37  0.080 / 0.100
G11     144.2          14.2               18.5 +/-    1.43      46.8 +/-    1.43  0.070 / 0.080
G16     46.4           11.4                9.9 +/-    2.46      26.7 +/-    2.46  0.170 / 0.210
G23     156.1          43.0               15.6 +/-    1.08      21.6 +/-    1.08  0.070 / 0.190
G27     56.9           33.2               11.1 +/-    1.31      18.2 +/-    1.31  0.040 / 0.030
G28     236.2          26.2               15.6 +/-    1.67      29.6 +/-    1.67  0.040 / 0.030
G30     302.1          35.4               12.2 +/-    1.19      19.2 +/-    1.19  0.320 / 0.450