PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-21:12:50
G01     255.0          37.4                9.6 +/-    2.37      14.6 +/-    2.37  0.040 / 0.050
G03     316.5          40.1                7.6 +/-    1.82      11.0 +/-    1.82  0.040 / 0.040
G11     238.6          13.5                9.4 +/-    3.10      24.2 +/-    3.10  0.070 / 0.060
G14     57.0           42.4                8.8 +/-    1.36      12.3 +/-    1.36  0.050 / 0.070
G18     220.1          29.1               11.0 +/-    2.26      19.6 +/-    2.26  0.070 / 0.070
G22     308.4          62.4                6.8 +/-    0.58       7.5 +/-    0.58  0.070 / 0.060
G23     283.3          15.6                7.9 +/-    1.05      19.3 +/-    1.05  0.030 / 0.030
G26     141.8          34.3               11.5 +/-    1.03      18.5 +/-    1.03  0.030 / 0.020
G31     42.2           65.8                7.7 +/-    0.57       8.4 +/-    0.57  0.070 / 0.090
G32     73.9           25.7                8.5 +/-    2.04      16.4 +/-    2.04  0.060 / 0.070