PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-22:12:40
G05     48.1           18.1                8.2 +/-    1.89      18.9 +/-    1.89  0.150 / 0.410
G10     235.0          12.7                8.5 +/-   30.43      22.4 +/-   30.43  0.130 / 0.360
G13     76.6           35.4               12.0 +/-    1.05      19.0 +/-    1.05  0.040 / 0.080
G15     126.1          51.5               12.0 +/-    0.50      14.9 +/-    0.50  0.050 / 0.080
G16     315.7          11.6                9.3 +/-    8.85      25.0 +/-    8.85  0.090 / 0.110
G20     246.9          35.5               12.6 +/-    1.56      19.8 +/-    1.56  0.090 / 0.130
G21     311.7          45.3               10.7 +/-    0.89      14.4 +/-    0.89  0.030 / 0.050
G25     200.7          12.9               11.4 +/-    2.43      29.8 +/-    2.43  0.030 / 0.050
G26     289.4          20.1                7.9 +/-    1.94      17.3 +/-    1.94  0.120 / 0.370
G29     150.8          73.7               11.1 +/-    0.39      11.5 +/-    0.39  0.130 / 0.350