PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-20:42:50
G01     267.8          40.9               10.2 +/-    1.11      14.6 +/-    1.11  0.070 / 0.120
G03     316.1          31.0                9.3 +/-    1.55      16.0 +/-    1.55  0.060 / 0.100
G10     130.8          14.5               12.5 +/-    2.23      31.5 +/-    2.23  0.150 / 0.190
G11     247.0          18.7               10.0 +/-    1.14      22.8 +/-    1.14  0.120 / 0.320
G14     46.3           48.4                9.3 +/-    0.72      12.0 +/-    0.72  0.130 / 0.330
G18     228.1          36.8               11.6 +/-    1.01      17.8 +/-    1.01  0.130 / 0.420
G22     313.6          53.2                8.1 +/-    1.82       9.9 +/-    1.82  0.040 / 0.080
G25     45.8           12.5                6.6 +/-    1.43      17.3 +/-    1.43  0.050 / 0.090
G31     55.2           75.9                9.0 +/-    0.38       9.3 +/-    0.38  0.050 / 0.060
G32     65.4           31.9                8.4 +/-    0.39      14.2 +/-    0.39  0.070 / 0.060