PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-03:42:40
G01     88.5           30.7                6.3 +/-    0.73      10.9 +/-    0.73  0.030 / 0.030
G07     124.1          46.8                5.9 +/-    1.41       7.7 +/-    1.41  0.030 / 0.030
G11     73.3           43.9                5.8 +/-    0.57       7.9 +/-    0.57  0.030 / 0.060
G13     294.5          37.2                6.6 +/-    0.83      10.0 +/-    0.83  0.030 / 0.050
G15     313.7          11.5                3.3 +/-    2.47       8.8 +/-    2.47  0.090 / 0.110
G17     212.0          53.4                8.7 +/-    0.94      10.6 +/-    0.94  0.080 / 0.100
G19     212.8          28.5                6.8 +/-    1.34      12.3 +/-    1.34  0.040 / 0.070
G28     327.8          60.5                5.3 +/-    0.69       5.9 +/-    0.69  0.040 / 0.080
G30     87.7           80.7                5.0 +/-    0.80       5.1 +/-    0.80  0.040 / 0.070