PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-19:12:30
G07     327.8          56.7               11.1 +/-    0.69      13.1 +/-    0.69  0.040 / 0.040
G08     110.3          48.3               12.6 +/-    0.56      16.3 +/-    0.56  0.040 / 0.050
G09     225.3          81.9               11.3 +/-    0.38      11.4 +/-    0.38  0.030 / 0.030
G16     43.8           19.1                6.3 +/-    1.93      14.1 +/-    1.93  0.030 / 0.020
G23     152.5          52.1               12.9 +/-    0.45      15.8 +/-    0.45  0.040 / 0.060
G27     66.5           36.5               11.0 +/-    1.40      17.0 +/-    1.40  0.050 / 0.080
G28     230.2          18.9               15.2 +/-    2.89      34.3 +/-    2.89  0.040 / 0.050
G30     295.3          30.0                9.4 +/-    1.24      16.5 +/-    1.24  0.040 / 0.050