PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-19:12:30
G07     11.3           66.6               12.4 +/-    0.71      13.4 +/-    0.71  0.030 / 0.040
G08     73.0           50.4               12.5 +/-    1.08      15.7 +/-    1.08  0.030 / 0.040
G09     182.5          59.3               15.1 +/-    0.46      17.3 +/-    0.46  0.050 / 0.040
G11     134.8          23.3               15.3 +/-    2.28      31.2 +/-    2.28  0.040 / 0.030
G23     159.4          28.0               15.3 +/-    1.31      27.9 +/-    1.31  0.080 / 0.170
G27     45.4           24.6               10.4 +/-    1.91      20.6 +/-    1.91  0.120 / 0.140
G28     247.8          36.4               14.0 +/-    1.80      21.6 +/-    1.80  0.070 / 0.110
G30     313.9          45.6               12.4 +/-    1.05      16.6 +/-    1.05  0.080 / 0.110