PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-19:57:30
G07     353.3          63.8               14.9 +/-    0.63      16.4 +/-    0.63  0.030 / 0.040
G08     85.0           51.7               13.4 +/-    1.59      16.6 +/-    1.59  0.030 / 0.050
G09     185.9          67.4               15.9 +/-    0.24      17.1 +/-    0.24  0.100 / 0.140
G11     140.1          18.3               16.2 +/-    0.81      37.1 +/-    0.81  0.100 / 0.130
G23     157.9          36.2               15.5 +/-    0.56      24.1 +/-    0.56  0.030 / 0.030
G27     51.0           29.7               12.3 +/-    0.81      21.7 +/-    0.81  0.030 / 0.020
G28     241.2          31.0               16.1 +/-    1.88      27.6 +/-    1.88  0.100 / 0.120
G30     307.3          39.9               13.8 +/-    1.57      20.1 +/-    1.57  0.090 / 0.120