PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-01:12:30
G02     204.3          39.9               13.1 +/-    1.39      19.0 +/-    1.39  0.060 / 0.070
G06     165.4          70.2               11.4 +/-    0.53      12.0 +/-    0.53  0.060 / 0.070
G12     308.7          16.3                6.0 +/-    2.82      14.5 +/-    2.82  0.070 / 0.100
G17     41.1           44.6                7.3 +/-    1.07       9.9 +/-    1.07  0.060 / 0.100
G19     8.8            62.9                8.6 +/-    0.57       9.5 +/-    0.57  0.040 / 0.030
G24     290.8          41.1                8.6 +/-    9.41      12.2 +/-    9.41  0.040 / 0.030
G28     104.6          31.6                9.5 +/-    0.75      16.0 +/-    0.75  0.040 / 0.030