PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-01:58:00
G10     304.9          54.7                9.6 +/-    1.36      11.5 +/-    1.36  0.140 / 0.090
G14     210.9          14.7               12.1 +/-    2.62      30.3 +/-    2.62  0.070 / 0.070
G15     45.6           24.0                6.7 +/-    2.68      13.5 +/-    2.68  0.050 / 0.060
G20     1.0            64.9               10.6 +/-    0.58      11.6 +/-    0.58  0.050 / 0.050
G21     106.4          72.0               12.2 +/-    0.69      12.7 +/-    0.69  0.050 / 0.040
G24     94.0           27.9                8.8 +/-    1.58      16.2 +/-    1.58  0.040 / 0.030
G27     297.2          35.5                9.7 +/-    2.71      15.2 +/-    2.71  0.140 / 0.540
G32     212.1          34.1               12.1 +/-    2.18      19.6 +/-    2.18  0.180 / 0.510