PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/03-15:27:50
G01     126.0          11.6                9.9 +/-    1.91      26.7 +/-    1.91  0.090 / 0.070
G07     67.0           66.4               10.7 +/-    0.40      11.6 +/-    0.40  0.070 / 0.080
G08     50.7           40.1                8.9 +/-    0.45      12.9 +/-    0.45  0.040 / 0.040
G09     178.9          37.2               12.3 +/-    1.20      18.8 +/-    1.20  0.040 / 0.050
G11     117.2          36.3               10.7 +/-    0.81      16.6 +/-    0.81  0.080 / 0.090
G13     320.7          12.8                9.1 +/-    1.38      23.7 +/-    1.38  0.070 / 0.110
G17     199.8          14.1                9.6 +/-    1.06      24.4 +/-    1.06  0.100 / 0.350
G18     101.9          16.8                9.0 +/-    0.68      21.5 +/-    0.68  0.110 / 0.340
G28     270.9          48.9               10.9 +/-    0.80      13.9 +/-    0.80  0.140 / 0.390
G30     338.3          63.7                9.6 +/-    0.80      10.6 +/-    0.80  0.140 / 0.310