PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-14:28:00
G03     189.6          23.5                7.8 +/-    2.64      15.7 +/-    2.64  0.220 / 0.350
G07     289.2          40.1                9.2 +/-    1.90      13.4 +/-    1.90  0.130 / 0.410
G08     144.9          23.6                9.2 +/-    1.34      18.6 +/-    1.34  0.100 / 0.140
G09     320.4          56.1                8.9 +/-    0.58      10.4 +/-    0.58  0.080 / 0.120
G16     45.9           46.2                8.9 +/-    0.67      11.8 +/-    0.67  0.120 / 0.420
G23     86.8           82.2                8.7 +/-    0.50       8.8 +/-    0.50  0.120 / 0.320
G26     43.5           17.5                8.9 +/-    2.78      20.7 +/-    2.78  0.040 / 0.050
G27     107.5          31.0               10.7 +/-    1.43      18.4 +/-    1.43  0.030 / 0.060
G30     270.7          11.5                0.8 +/-   30.14       2.3 +/-   30.14  0.080 / 0.090