PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/17-21:12:50
G08     317.4          14.1               11.1 +/-    1.52      28.2 +/-    1.52  0.050 / 0.080
G10     310.4          55.3               11.9 +/-    0.62      14.1 +/-    0.62  0.040 / 0.080
G14     213.0          21.4               17.3 +/-    1.75      36.8 +/-    1.75  0.040 / 0.040
G15     45.5           20.0               10.4 +/-    0.64      22.8 +/-    0.64  0.030 / 0.050
G18     19.1           63.5               11.9 +/-    0.51      13.2 +/-    0.51  0.070 / 0.120
G20     77.8           12.7               12.7 +/-    1.21      33.4 +/-    1.21  0.060 / 0.120
G21     120.0          64.8               14.7 +/-    0.69      16.1 +/-    0.69  0.130 / 0.360
G24     88.9           29.4               13.2 +/-    0.60      23.4 +/-    0.60  0.140 / 0.420
G27     287.9          37.7               12.7 +/-    1.27      19.2 +/-    1.27  0.050 / 0.070
G32     215.8          38.1               15.4 +/-    1.71      23.2 +/-    1.71  0.050 / 0.060