PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-02:28:00
G08     311.4          17.5                7.4 +/-    1.90      17.4 +/-    1.90  0.050 / 0.070
G10     335.9          60.7                7.3 +/-    0.50       8.2 +/-    0.50  0.050 / 0.070
G14     217.9          30.7                8.6 +/-    3.00      14.8 +/-    3.00  0.040 / 0.030
G20     38.0           60.3                7.1 +/-    0.63       8.1 +/-    0.63  0.030 / 0.030
G21     134.9          57.2                8.7 +/-    0.50      10.2 +/-    0.50  0.030 / 0.040
G24     73.9           30.1                7.4 +/-    1.01      12.9 +/-    1.01  0.030 / 0.060
G27     275.2          37.5                8.1 +/-    2.74      12.2 +/-    2.74  0.090 / 0.270
G32     223.1          51.2                8.8 +/-    2.01      10.9 +/-    2.01  0.170 / 0.190