PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-20:13:00
G01     315.4          24.6                7.8 +/-    2.31      15.4 +/-    2.31  0.150 / 0.310
G10     91.5           48.8                9.0 +/-    1.07      11.5 +/-    1.07  0.210 / 0.220
G11     295.5          26.2                8.0 +/-    3.41      15.2 +/-    3.41  0.040 / 0.040
G14     325.1          70.8                9.1 +/-    0.53       9.6 +/-    0.53  0.040 / 0.030
G18     109.2          21.7                8.4 +/-    1.12      17.6 +/-    1.12  0.170 / 0.220
G22     304.5          16.0                7.0 +/-    1.18      17.1 +/-    1.18  0.170 / 0.230
G25     93.3           12.2               10.7 +/-    1.90      28.5 +/-    1.90  0.040 / 0.040
G31     175.9          49.8               11.3 +/-    0.86      14.3 +/-    0.86  0.040 / 0.030
G32     19.6           62.0                8.8 +/-    0.70       9.8 +/-    0.70  0.110 / 0.140