PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-20:28:00
G07     25.8           68.0               14.6 +/-    0.60      15.6 +/-    0.60  0.030 / 0.040
G08     63.6           47.5               13.1 +/-    1.25      17.0 +/-    1.25  0.040 / 0.040
G09     180.5          52.2               17.4 +/-    0.37      21.3 +/-    0.37  0.060 / 0.150
G11     129.8          27.4               15.5 +/-    0.91      28.7 +/-    0.91  0.100 / 0.180
G18     112.9          9.6                -7.3 +/-   24.09     -20.7 +/-   24.09  0.040 / 0.040
G23     160.4          22.2               16.0 +/-    2.14      33.4 +/-    2.14  0.040 / 0.040
G27     42.1           20.2               11.3 +/-    2.40      24.7 +/-    2.40  0.220 / 0.230
G28     254.4          41.1               16.1 +/-    3.56      23.0 +/-    3.56  0.170 / 0.210
G30     319.0          49.9               13.5 +/-    0.86      17.1 +/-    0.86  0.050 / 0.060