PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-06:42:50
G01     86.9           31.2                7.1 +/-    0.46      12.1 +/-    0.46  0.030 / 0.030
G07     126.1          44.1                7.9 +/-    1.16      10.7 +/-    1.16  0.030 / 0.030
G11     69.5           42.2                5.8 +/-    0.55       8.1 +/-    0.55  0.030 / 0.060
G13     292.4          37.6                5.9 +/-    1.00       9.0 +/-    1.00  0.040 / 0.060
G15     313.6          11.2                1.5 +/-    4.68       4.2 +/-    4.68  0.040 / 0.070
G17     213.8          53.9                8.4 +/-    1.46      10.2 +/-    1.46  0.040 / 0.090
G19     213.8          30.1                5.6 +/-    1.74       9.8 +/-    1.74  0.070 / 0.120
G28     333.2          61.0                3.9 +/-    0.75       4.4 +/-    0.75  0.060 / 0.130
G30     101.1          78.7                6.8 +/-    0.39       7.0 +/-    0.39  0.050 / 0.070