PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-20:58:10
G02     355.5          75.7               10.2 +/-    0.71      10.5 +/-    0.71  0.020 / 0.020
G05     161.6          38.7               12.4 +/-    1.02      18.4 +/-    1.02  0.020 / 0.030
G06     43.4           34.3                9.5 +/-    1.43      15.3 +/-    1.43  0.050 / 0.070
G12     295.2          78.4               11.4 +/-    0.99      11.6 +/-    0.99  0.050 / 0.080
G17     89.8           9.2                11.3 +/-    1.90      32.1 +/-    1.90  0.170 / 0.340
G19     78.2           26.5                8.7 +/-    1.58      16.4 +/-    1.58  0.180 / 0.350
G24     223.8          19.0               13.1 +/-    3.18      29.5 +/-    3.18  0.160 / 0.260
G25     316.2          33.4                9.8 +/-    1.27      16.1 +/-    1.27  0.190 / 0.240