PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-21:28:10
G01     319.9          15.1                8.2 +/-    1.56      20.4 +/-    1.56  0.160 / 0.310
G08     259.8          14.8               12.5 +/-    1.26      31.2 +/-    1.26  0.240 / 0.370
G10     73.5           55.7                8.7 +/-    0.55      10.3 +/-    0.55  0.060 / 0.090
G11     305.9          21.7                8.2 +/-    1.93      17.3 +/-    1.93  0.090 / 0.090
G14     288.6          70.2               11.7 +/-    0.56      12.3 +/-    0.56  0.150 / 0.460
G18     99.3           30.4               12.8 +/-    0.70      22.3 +/-    0.70  0.130 / 0.440
G27     225.2          10.5               14.2 +/-    3.73      39.2 +/-    3.73  0.050 / 0.060
G31     179.5          35.5               16.8 +/-    1.40      26.4 +/-    1.40  0.060 / 0.050
G32     354.6          70.6               10.2 +/-    0.64      10.7 +/-    0.64  0.030 / 0.030