PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-21:58:00
G03     195.4          34.3               10.2 +/-    0.75      16.4 +/-    0.75  0.110 / 0.270
G07     276.0          28.7                6.5 +/-    1.47      11.6 +/-    1.47  0.120 / 0.290
G08     152.3          15.4               11.9 +/-    3.28      29.3 +/-    3.28  0.030 / 0.040
G09     318.8          46.9                7.1 +/-    0.69       9.3 +/-    0.69  0.030 / 0.040
G16     52.2           54.4                8.5 +/-    0.48      10.2 +/-    0.48  0.170 / 0.340
G22     181.3          19.3               10.0 +/-    2.05      22.4 +/-    2.05  0.250 / 0.250
G23     12.6           79.9                6.4 +/-    0.73       6.5 +/-    0.73  0.030 / 0.060
G26     43.4           24.6                7.0 +/-    1.47      13.8 +/-    1.47  0.030 / 0.050
G27     114.5          26.0               10.2 +/-    1.57      19.5 +/-    1.57  0.060 / 0.100