PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-09:57:20
G02     294.0          81.9                4.7 +/-    0.91       4.7 +/-    0.91  0.190 / 0.210
G05     170.9          21.6                5.6 +/-    1.88      11.9 +/-    1.88  0.140 / 0.210
G06     39.6           49.1                4.5 +/-    0.99       5.7 +/-    0.99  0.040 / 0.030
G12     320.7          64.3                5.6 +/-    0.91       6.1 +/-    0.91  0.030 / 0.030
G17     77.4           16.9                1.3 +/-    1.53       3.2 +/-    1.53  0.090 / 0.160
G19     66.3           31.2                3.7 +/-    1.07       6.3 +/-    1.07  0.130 / 0.150
G24     238.3          29.5                6.6 +/-    1.01      11.7 +/-    1.01  0.030 / 0.030
G25     317.2          19.4                2.0 +/-    1.37       4.5 +/-    1.37  0.040 / 0.030