PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-16:42:30
G02     314.8          79.9                7.9 +/-    0.80       8.0 +/-    0.80  0.110 / 0.180
G05     166.3          30.0               10.2 +/-    1.87      17.9 +/-    1.87  0.120 / 0.180
G06     40.7           42.1                7.7 +/-    0.86      10.8 +/-    0.86  0.230 / 0.330
G12     315.6          67.7                8.5 +/-    0.72       9.1 +/-    0.72  0.230 / 0.370
G17     81.8           15.9                8.4 +/-    2.30      20.5 +/-    2.30  0.040 / 0.040
G19     72.8           27.3                8.4 +/-    1.31      15.7 +/-    1.31  0.060 / 0.070
G24     231.5          24.7               10.0 +/-    1.41      19.7 +/-    1.41  0.030 / 0.020
G25     317.3          25.2                7.6 +/-    1.81      14.8 +/-    1.81  0.030 / 0.030