PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-14:58:10
G03     185.4          12.5                8.8 +/-    3.27      23.3 +/-    3.27  0.040 / 0.060
G07     302.8          46.9                9.8 +/-    1.27      12.9 +/-    1.27  0.050 / 0.060
G08     135.8          33.7               10.4 +/-    1.11      16.9 +/-    1.11  0.060 / 0.090
G09     317.7          68.6                8.1 +/-    0.67       8.6 +/-    0.67  0.060 / 0.090
G16     42.2           34.7                7.7 +/-    0.49      12.4 +/-    0.49  0.030 / 0.040
G23     133.2          72.1                9.6 +/-    0.34      10.0 +/-    0.34  0.030 / 0.040
G27     92.9           36.1                9.0 +/-    1.17      14.0 +/-    1.17  0.050 / 0.120
G30     280.0          18.8                9.1 +/-    1.85      20.7 +/-    1.85  0.070 / 0.090