PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-19:12:30
G02     219.2          61.9               11.8 +/-    1.48      13.1 +/-    1.48  0.070 / 0.090
G06     50.4           69.9               10.3 +/-    0.59      10.9 +/-    0.59  0.070 / 0.070
G12     320.4          41.8               10.1 +/-    0.88      14.2 +/-    0.88  0.070 / 0.060
G17     59.7           30.8                9.6 +/-    1.76      16.6 +/-    1.76  0.040 / 0.060
G19     40.0           49.3               10.0 +/-    1.45      12.8 +/-    1.45  0.030 / 0.020
G24     259.8          40.9               13.0 +/-    4.55      18.6 +/-    4.55  0.030 / 0.020
G28     124.6          11.4               12.1 +/-    3.17      32.7 +/-    3.17  0.040 / 0.050