PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-23:42:40
G02     339.4          79.2               11.9 +/-    0.88      12.1 +/-    0.88  0.180 / 0.120
G05     164.0          32.4               16.5 +/-    1.04      27.5 +/-    1.04  0.100 / 0.190
G06     40.2           44.1               10.3 +/-    1.10      14.1 +/-    1.10  0.170 / 0.190
G12     315.0          66.5               11.2 +/-    0.44      12.1 +/-    0.44  0.160 / 0.190
G17     84.4           12.1               11.8 +/-    1.83      31.3 +/-    1.83  0.030 / 0.030
G19     73.3           27.7               10.2 +/-    1.19      18.8 +/-    1.19  0.040 / 0.030
G24     228.9          23.6               16.4 +/-    2.34      33.2 +/-    2.34  0.050 / 0.050
G25     317.2          27.5               10.7 +/-    2.75      19.8 +/-    2.75  0.060 / 0.050