PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/25-18:27:50
G10     266.9          38.5               10.4 +/-    1.65      15.5 +/-    1.65  0.080 / 0.150
G13     41.9           18.1                8.8 +/-    0.94      20.2 +/-    0.94  0.080 / 0.120
G15     62.0           51.9                9.9 +/-    0.64      12.2 +/-    0.64  0.040 / 0.040
G16     279.3          12.2                9.2 +/-    2.91      24.4 +/-    2.91  0.040 / 0.050
G20     297.4          60.3                8.7 +/-    0.70       9.9 +/-    0.70  0.190 / 0.480
G21     6.0            72.2                9.9 +/-    0.63      10.4 +/-    0.63  0.200 / 0.450
G24     117.2          14.5               13.0 +/-    1.52      32.7 +/-    1.52  0.070 / 0.230
G27     319.4          17.3                8.4 +/-    0.77      19.8 +/-    0.77  0.100 / 0.250
G29     167.6          31.2               12.0 +/-    0.88      20.5 +/-    0.88  0.180 / 0.250