PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/04-22:42:50
G02     218.3          63.4               12.3 +/-    1.00      13.5 +/-    1.00  0.070 / 0.290
G06     54.8           74.8               10.3 +/-    0.69      10.6 +/-    0.69  0.080 / 0.240
G12     318.2          35.6                8.0 +/-    1.29      12.5 +/-    1.29  0.040 / 0.060
G17     59.3           30.4                9.9 +/-    0.53      17.2 +/-    0.53  0.040 / 0.050
G19     42.3           47.1               10.9 +/-    0.39      14.2 +/-    0.39  0.060 / 0.100
G24     260.8          40.9               11.3 +/-    1.06      16.2 +/-    1.06  0.080 / 0.090
G28     122.9          15.9               12.4 +/-    2.25      30.1 +/-    2.25  0.050 / 0.080