PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-14:12:40
G01     38.7           12.7                5.5 +/-    2.90      14.5 +/-    2.90  0.040 / 0.050
G06     172.8          43.2                9.3 +/-    0.82      12.9 +/-    0.82  0.060 / 0.070
G13     233.5          20.2                7.7 +/-    2.47      16.9 +/-    2.47  0.330 / 0.260
G15     268.0          10.8                5.7 +/-    1.79      15.7 +/-    1.79  0.120 / 0.220
G17     357.8          70.5                6.8 +/-    0.68       7.2 +/-    0.68  0.020 / 0.030
G19     291.6          71.6                6.9 +/-    0.50       7.2 +/-    0.50  0.030 / 0.040
G24     315.4          21.2                5.1 +/-    3.65      10.9 +/-    3.65  0.050 / 0.060
G28     69.7           50.0                7.2 +/-    0.82       9.1 +/-    0.82  0.050 / 0.070
G30     155.4          24.0                8.1 +/-    3.65      16.3 +/-    3.65  0.040 / 0.040