PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-19:57:50
G03     314.5          49.7                9.0 +/-    0.94      11.4 +/-    0.94  0.040 / 0.040
G14     64.8           38.5                8.6 +/-    1.06      12.8 +/-    1.06  0.040 / 0.040
G16     162.5          21.5               11.2 +/-    1.61      23.7 +/-    1.61  0.030 / 0.040
G22     296.7          70.3                8.5 +/-    0.33       9.0 +/-    0.33  0.040 / 0.050
G23     290.3          22.4               11.4 +/-    1.29      23.7 +/-    1.29  0.120 / 0.280
G26     132.4          41.7               11.0 +/-    0.62      15.6 +/-    0.62  0.120 / 0.270
G31     40.1           54.2                7.8 +/-    0.66       9.3 +/-    0.66  0.050 / 0.080
G32     81.4           20.0                9.0 +/-    2.88      19.8 +/-    2.88  0.040 / 0.090