PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-05:13:00
G01     88.8           30.7                6.0 +/-    0.67      10.3 +/-    0.67  0.030 / 0.030
G07     124.2          46.3                6.2 +/-    1.64       8.2 +/-    1.64  0.030 / 0.040
G11     72.5           43.4                5.6 +/-    0.68       7.8 +/-    0.68  0.120 / 0.400
G13     294.6          37.1                5.6 +/-    1.69       8.6 +/-    1.69  0.120 / 0.340
G15     314.4          11.0               -0.2 +/-   16.72      -0.6 +/-   16.72  0.070 / 0.140
G17     212.2          52.7                2.5 +/-    0.86       3.0 +/-    0.86  0.090 / 0.140
G19     212.9          28.4                6.9 +/-    2.53      12.5 +/-    2.53  0.040 / 0.070
G28     328.7          60.6                4.5 +/-    0.78       5.1 +/-    0.78  0.040 / 0.080
G30     89.6           80.3                6.0 +/-    0.76       6.0 +/-    0.76  0.040 / 0.070