PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-03:12:50
G01     114.1          21.1                7.2 +/-    1.00      15.5 +/-    1.00  0.030 / 0.040
G07     96.2           61.2                5.4 +/-    0.49       6.1 +/-    0.49  0.030 / 0.040
G08     42.5           24.2                1.8 +/-    1.42       3.7 +/-    1.42  0.040 / 0.060
G09     174.9          19.1                5.4 +/-    2.14      12.1 +/-    2.14  0.040 / 0.060
G11     96.9           41.8                6.1 +/-    0.51       8.6 +/-    0.51  0.110 / 0.230
G13     314.5          24.1                2.9 +/-    1.37       5.7 +/-    1.37  0.090 / 0.220
G17     201.9          32.7                5.6 +/-    1.98       9.3 +/-    1.98  0.080 / 0.210
G18     84.6           22.0                4.0 +/-    1.12       8.4 +/-    1.12  0.090 / 0.260
G28     299.0          58.1                3.7 +/-    0.40       4.3 +/-    0.40  0.040 / 0.040
G30     353.9          72.4                3.7 +/-    0.65       3.9 +/-    0.65  0.040 / 0.030