PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-14:57:50
G01     74.2           33.2                8.3 +/-    0.85      13.6 +/-    0.85  0.030 / 0.030
G07     135.7          33.7               11.7 +/-    1.09      19.0 +/-    1.09  0.030 / 0.030
G11     55.3           32.1                7.9 +/-    1.30      13.2 +/-    1.30  0.060 / 0.090
G13     277.9          37.9               10.0 +/-    1.19      15.0 +/-    1.19  0.070 / 0.090
G15     307.3          13.2                7.0 +/-    1.96      18.1 +/-    1.96  0.080 / 0.150
G17     228.6          66.7               11.4 +/-    0.58      12.3 +/-    0.58  0.100 / 0.240
G18     51.1           19.3                7.5 +/-    3.50      16.8 +/-    3.50  0.060 / 0.120
G19     222.0          36.4               12.1 +/-    1.75      18.7 +/-    1.75  0.070 / 0.100
G28     14.1           60.0               10.5 +/-    1.47      11.9 +/-    1.47  0.090 / 0.190
G30     132.1          65.7               11.2 +/-    0.64      12.2 +/-    0.64  0.110 / 0.190