PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/30-20:28:00
G01     319.9          15.2                8.4 +/-    2.29      20.9 +/-    2.29  0.060 / 0.040
G08     260.0          14.7                9.5 +/-    1.94      23.7 +/-    1.94  0.070 / 0.040
G10     73.9           55.5                8.6 +/-    0.46      10.2 +/-    0.46  0.050 / 0.080
G11     306.1          21.5                9.9 +/-    1.42      21.0 +/-    1.42  0.060 / 0.060
G14     288.4          70.0                9.2 +/-    0.52       9.7 +/-    0.52  0.120 / 0.230
G18     99.6           30.0                9.9 +/-    1.23      17.4 +/-    1.23  0.140 / 0.220
G31     178.8          36.4               12.4 +/-    1.84      19.1 +/-    1.84  0.030 / 0.020
G32     356.5          70.3                8.8 +/-    0.37       9.3 +/-    0.37  0.030 / 0.020