PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-18:12:50
G01     249.4          34.4               10.9 +/-    1.52      17.4 +/-    1.52  0.040 / 0.040
G03     315.4          48.0                8.3 +/-    1.15      10.7 +/-    1.15  0.040 / 0.040
G11     238.3          11.9                9.3 +/-    3.48      24.9 +/-    3.48  0.030 / 0.040
G14     61.1           40.9                7.0 +/-    1.27      10.1 +/-    1.27  0.030 / 0.040
G22     301.4          68.7                9.3 +/-    0.59       9.9 +/-    0.59  0.040 / 0.090
G23     288.4          21.2                9.1 +/-    2.45      19.5 +/-    2.45  0.040 / 0.090
G25     39.1           9.7                 6.2 +/-    1.95      17.4 +/-    1.95  0.080 / 0.440
G26     134.4          39.5               12.1 +/-    0.73      17.7 +/-    0.73  0.120 / 0.270
G31     40.6           56.4                7.7 +/-    0.54       9.1 +/-    0.54  0.040 / 0.060
G32     79.1           21.4                8.7 +/-    1.02      18.6 +/-    1.02  0.040 / 0.050