PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-15:42:50
G02     221.6          62.6               10.2 +/-    1.25      11.4 +/-    1.25  0.060 / 0.060
G06     48.0           68.9                9.6 +/-    0.38      10.2 +/-    0.38  0.050 / 0.070
G12     319.4          40.2                7.5 +/-    0.64      10.9 +/-    0.64  0.070 / 0.080
G17     59.0           32.1                8.4 +/-    2.00      14.0 +/-    2.00  0.060 / 0.100
G19     46.2           44.4                8.8 +/-    1.40      11.9 +/-    1.40  0.030 / 0.020
G24     259.6          39.7               10.2 +/-    2.04      14.9 +/-    2.04  0.030 / 0.020
G28     124.2          15.6               10.3 +/-    2.22      25.1 +/-    2.22  0.040 / 0.050