PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-21:42:50
G01     118.1          18.1               12.0 +/-    1.02      27.6 +/-    1.02  0.040 / 0.040
G07     89.5           62.1               11.3 +/-    0.45      12.6 +/-    0.45  0.040 / 0.040
G08     44.1           29.1                8.3 +/-    1.90      14.9 +/-    1.90  0.120 / 0.120
G09     177.1          25.9               11.7 +/-    1.38      22.4 +/-    1.38  0.110 / 0.150
G11     103.6          40.7               11.1 +/-    0.72      15.9 +/-    0.72  0.140 / 0.330
G13     317.0          20.7                9.5 +/-    2.31      20.6 +/-    2.31  0.130 / 0.300
G17     200.8          27.0               12.7 +/-    1.72      23.8 +/-    1.72  0.080 / 0.080
G18     90.0           20.8               10.4 +/-    2.42      22.5 +/-    2.42  0.050 / 0.060
G28     288.5          55.4               10.1 +/-    2.20      12.0 +/-    2.20  0.110 / 0.200
G30     348.4          69.6               10.5 +/-    0.99      11.1 +/-    0.99  0.120 / 0.230