PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-19:58:10
G02     325.2          80.1                7.6 +/-    0.99       7.7 +/-    0.99  0.070 / 0.170
G05     165.2          30.7               11.9 +/-    1.69      20.5 +/-    1.69  0.070 / 0.170
G06     40.4           43.3                6.3 +/-    0.63       8.7 +/-    0.63  0.100 / 0.180
G12     316.0          66.0                5.6 +/-    0.94       6.0 +/-    0.94  0.080 / 0.150
G17     82.3           14.7                7.2 +/-    1.79      18.1 +/-    1.79  0.040 / 0.040
G19     72.4           27.9                6.7 +/-    0.65      12.3 +/-    0.65  0.030 / 0.040
G24     230.9          24.7               10.0 +/-    2.14      19.6 +/-    2.14  0.030 / 0.050
G25     317.3          25.3                7.7 +/-    3.20      14.9 +/-    3.20  0.040 / 0.050