PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-06:43:00
G01     91.4           30.3                7.9 +/-    1.15      13.7 +/-    1.15  0.030 / 0.030
G07     122.5          47.4                9.3 +/-    0.32      12.1 +/-    0.32  0.030 / 0.020
G08     42.0           10.4                3.2 +/-    4.04       8.9 +/-    4.04  0.130 / 0.430
G11     74.3           43.5                7.8 +/-    0.69      10.8 +/-    0.69  0.210 / 0.280
G13     296.9          36.4                7.4 +/-    3.66      11.5 +/-    3.66  0.040 / 0.050
G17     211.2          50.0                9.3 +/-    0.67      11.7 +/-    0.67  0.040 / 0.050
G19     212.1          26.5                7.9 +/-    2.17      14.8 +/-    2.17  0.050 / 0.050
G28     325.9          60.4                7.6 +/-    0.68       8.6 +/-    0.68  0.050 / 0.050
G30     81.0           80.6                8.5 +/-    0.68       8.6 +/-    0.68  0.050 / 0.060