PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-01:27:40
G08     313.9          16.8                9.7 +/-    2.50      23.0 +/-    2.50  0.070 / 0.080
G10     317.3          57.0                9.7 +/-    0.88      11.3 +/-    0.88  0.070 / 0.080
G14     214.7          25.9                9.6 +/-    1.28      18.4 +/-    1.28  0.030 / 0.040
G15     45.8           18.2                9.6 +/-    2.03      22.2 +/-    2.03  0.040 / 0.030
G18     24.1           62.7               11.7 +/-    1.85      13.0 +/-    1.85  0.100 / 0.090
G21     125.5          63.2               12.5 +/-    0.72      13.9 +/-    0.72  0.060 / 0.090
G24     83.9           30.2               11.0 +/-    1.11      19.1 +/-    1.11  0.040 / 0.050
G27     282.2          38.1               11.9 +/-    1.17      17.9 +/-    1.17  0.030 / 0.030
G32     218.2          43.7               13.0 +/-    0.61      17.9 +/-    0.61  0.110 / 0.190