PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/13-19:12:50
G08     269.6          18.9               10.9 +/-    1.29      24.7 +/-    1.29  0.080 / 0.240
G10     55.9           59.8                8.8 +/-    0.34      10.0 +/-    0.34  0.090 / 0.250
G11     313.3          15.3               10.2 +/-    1.76      25.1 +/-    1.76  0.090 / 0.540
G14     262.5          65.0               11.2 +/-    0.58      12.2 +/-    0.58  0.100 / 0.410
G18     90.6           36.2                9.4 +/-    0.84      14.5 +/-    0.84  0.040 / 0.120
G21     152.5          12.4               10.4 +/-    2.53      27.4 +/-    2.53  0.050 / 0.120
G24     41.1           12.7                7.0 +/-    2.30      18.5 +/-    2.30  0.090 / 0.150
G27     232.3          17.0               13.7 +/-    2.10      32.4 +/-    2.10  0.110 / 0.160
G31     180.1          26.5               12.0 +/-    2.29      22.6 +/-    2.29  0.050 / 0.050
G32     326.3          75.0               11.2 +/-    0.63      11.6 +/-    0.63  0.040 / 0.040