PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-15:12:50
G01     64.1           31.3                8.1 +/-    1.16      13.9 +/-    1.16  0.040 / 0.050
G07     139.6          22.6                8.5 +/-    1.20      17.5 +/-    1.20  0.050 / 0.040
G11     50.1           27.5                5.4 +/-    1.82      10.0 +/-    1.82  0.070 / 0.230
G13     266.9          37.5                8.4 +/-    2.81      12.7 +/-    2.81  0.100 / 0.190
G15     297.7          16.1                8.5 +/-    2.57      20.5 +/-    2.57  0.100 / 0.120
G17     240.2          70.7               10.4 +/-    0.40      11.0 +/-    0.40  0.070 / 0.130
G18     44.4           14.9                6.4 +/-    1.81      15.9 +/-    1.81  0.030 / 0.030
G19     227.5          47.9                9.5 +/-    2.58      12.3 +/-    2.58  0.030 / 0.040
G28     17.1           60.3               10.8 +/-    1.90      12.2 +/-    1.90  0.090 / 0.230
G30     140.2          55.1               10.0 +/-    0.42      11.9 +/-    0.42  0.130 / 0.350