PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-10:12:40
G01     73.2           33.0                6.1 +/-    0.71      10.0 +/-    0.71  0.040 / 0.090
G07     136.1          31.3                8.6 +/-    0.92      14.7 +/-    0.92  0.040 / 0.100
G11     54.9           30.7                4.6 +/-    0.72       7.9 +/-    0.72  0.040 / 0.070
G13     279.4          37.0                7.3 +/-    0.88      11.2 +/-    0.88  0.040 / 0.060
G15     305.0          14.7                4.0 +/-    2.40      10.1 +/-    2.40  0.100 / 0.260
G17     230.8          69.5                8.4 +/-    0.88       8.9 +/-    0.88  0.110 / 0.330
G19     222.8          41.8                9.2 +/-    0.96      13.0 +/-    0.96  0.030 / 0.030
G28     16.8           59.5                5.8 +/-    0.37       6.7 +/-    0.37  0.030 / 0.030
G30     132.2          64.5                7.8 +/-    0.85       8.6 +/-    0.85  0.050 / 0.080