PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-18:27:50
G01     320.6          13.6                5.1 +/-    1.25      13.2 +/-    1.25  0.090 / 0.230
G08     260.0          15.9                8.0 +/-    3.76      19.5 +/-    3.76  0.090 / 0.260
G10     71.6           55.3                7.7 +/-    0.28       9.1 +/-    0.28  0.040 / 0.040
G11     306.6          21.3                5.5 +/-    3.57      11.8 +/-    3.57  0.040 / 0.030
G14     282.0          69.6                7.8 +/-    0.68       8.3 +/-    0.68  0.120 / 0.280
G18     307.4          39.2                6.6 +/-    1.86       9.7 +/-    1.86  0.070 / 0.280
G20     100.7          32.7                8.5 +/-    1.19      14.1 +/-    1.19  0.070 / 0.050
G27     230.0          12.9               10.6 +/-    2.01      27.8 +/-    2.01  0.080 / 0.050
G31     180.0          33.1                8.9 +/-    1.80      14.7 +/-    1.80  0.170 / 0.330
G32     352.7          71.5                8.2 +/-    0.60       8.6 +/-    0.60  0.140 / 0.400