PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-21:12:50
G10     277.0          42.9               16.6 +/-    0.85      23.0 +/-    0.85  0.030 / 0.060
G13     39.1           12.6               12.8 +/-    1.11      33.6 +/-    1.11  0.030 / 0.050
G15     51.6           41.3               15.4 +/-    1.17      21.9 +/-    1.17  0.200 / 0.350
G18     322.9          66.7               14.7 +/-    0.91      15.9 +/-    0.91  0.140 / 0.380
G20     60.8           28.2               13.6 +/-    1.14      24.7 +/-    1.14  0.100 / 0.240
G21     41.1           76.3               16.6 +/-    0.65      17.1 +/-    0.65  0.100 / 0.270
G24     113.8          19.2               19.1 +/-    1.40      42.9 +/-    1.40  0.090 / 0.190
G27     312.4          26.9               16.5 +/-    1.44      30.9 +/-    1.44  0.090 / 0.190
G29     166.6          17.5               19.3 +/-    2.18      45.3 +/-    2.18  0.050 / 0.060
G32     207.0          14.6               21.3 +/-    5.13      53.5 +/-    5.13  0.040 / 0.060