PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-23:57:30
G10     243.4          21.8               13.1 +/-    1.59      27.7 +/-    1.59  0.180 / 0.150
G13     61.9           32.9                9.0 +/-    1.00      14.9 +/-    1.00  0.130 / 0.130
G15     103.4          57.1               11.3 +/-    0.69      13.2 +/-    0.69  0.030 / 0.050
G16     305.3          14.7                6.9 +/-    2.20      17.3 +/-    2.20  0.040 / 0.060
G20     259.1          44.6               12.4 +/-    3.67      16.8 +/-    3.67  0.070 / 0.110
G21     323.8          53.6               10.2 +/-    0.72      12.4 +/-    0.72  0.070 / 0.130
G26     277.3          18.2               10.0 +/-    1.43      22.9 +/-    1.43  0.030 / 0.030
G29     159.4          59.1               13.0 +/-    0.44      14.9 +/-    0.44  0.040 / 0.040