PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-12:58:00
G03     218.6          62.2               10.2 +/-    1.61      11.3 +/-    1.61  0.100 / 0.250
G07     253.1          11.7                2.9 +/-   14.21       7.7 +/-   14.21  0.120 / 0.300
G09     307.8          24.3                6.5 +/-    1.63      12.9 +/-    1.63  0.130 / 0.240
G14     104.6          13.1                8.2 +/-    3.28      21.3 +/-    3.28  0.240 / 0.290
G16     104.7          63.2                9.7 +/-    0.52      10.7 +/-    0.52  0.050 / 0.070
G22     186.9          44.3                9.5 +/-    0.80      13.0 +/-    0.80  0.050 / 0.070
G23     330.0          59.0                7.9 +/-    0.46       9.0 +/-    0.46  0.040 / 0.030
G26     57.0           45.2                8.1 +/-    0.95      10.9 +/-    0.95  0.040 / 0.030
G31     57.2           11.8                7.5 +/-    1.59      20.2 +/-    1.59  0.030 / 0.050