PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/08-19:28:00
G03     207.0          54.2               12.7 +/-    0.52      15.3 +/-    0.52  0.040 / 0.030
G07     260.8          20.7               10.8 +/-    3.57      23.4 +/-    3.57  0.040 / 0.030
G09     312.0          31.1                9.8 +/-    1.55      16.8 +/-    1.55  0.270 / 0.360
G16     95.4           65.7               10.8 +/-    0.43      11.8 +/-    0.43  0.320 / 0.270
G22     186.6          37.2               12.3 +/-    1.33      18.7 +/-    1.33  0.180 / 0.340
G23     331.0          61.2                9.5 +/-    0.59      10.6 +/-    0.59  0.290 / 0.220
G26     54.3           45.7                9.5 +/-    0.53      12.7 +/-    0.53  0.060 / 0.040
G27     134.2          11.9               14.5 +/-    1.85      38.9 +/-    1.85  0.160 / 0.260
G31     60.2           11.2                9.3 +/-    2.41      25.1 +/-    2.41  0.090 / 0.130