PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-21:13:10
G07     57.9           67.7                9.9 +/-    0.61      10.6 +/-    0.61  0.160 / 0.260
G08     51.4           39.8                9.2 +/-    1.22      13.5 +/-    1.22  0.160 / 0.300
G09     178.7          39.5               13.1 +/-    1.95      19.3 +/-    1.95  0.050 / 0.080
G11     119.0          34.6               13.6 +/-    0.70      21.8 +/-    0.70  0.060 / 0.090
G17     198.7          14.0               12.2 +/-    0.92      31.2 +/-    0.92  0.040 / 0.050
G18     102.8          15.4               13.0 +/-    1.10      32.0 +/-    1.10  0.030 / 0.050
G23     161.1          11.1               10.9 +/-    2.24      29.8 +/-    2.24  0.130 / 0.290
G27     38.0           11.1                8.9 +/-    1.51      24.2 +/-    1.51  0.190 / 0.350
G28     268.6          48.6               12.5 +/-    1.20      16.0 +/-    1.20  0.040 / 0.050
G30     330.3          58.9                9.6 +/-    0.86      11.0 +/-    0.86  0.030 / 0.040