PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-22:57:50
G02     234.1          73.6               14.9 +/-    0.52      15.5 +/-    0.52  0.070 / 0.100
G05     172.2          13.8               22.0 +/-    3.25      56.4 +/-    3.25  0.080 / 0.090
G06     41.5           64.3               12.8 +/-    0.43      14.0 +/-    0.43  0.050 / 0.050
G12     320.5          45.7               12.1 +/-    0.67      16.1 +/-    0.67  0.040 / 0.050
G17     67.9           24.1               12.8 +/-    1.22      25.6 +/-    1.22  0.030 / 0.020
G19     53.6           40.3               12.1 +/-    1.30      17.6 +/-    1.30  0.040 / 0.030
G24     247.9          36.5               15.9 +/-    1.57      24.6 +/-    1.57  0.190 / 0.270