PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-15:57:40
G02     55.9           35.6                8.7 +/-    1.49      13.7 +/-    1.49  0.090 / 0.520
G05     67.0           66.5                9.5 +/-    0.42      10.3 +/-    0.42  0.150 / 0.440
G12     183.7          35.8               12.3 +/-    1.19      19.3 +/-    1.19  0.080 / 0.080
G13     129.4          12.5               12.8 +/-    4.38      33.9 +/-    4.38  0.070 / 0.100
G21     268.6          14.3                9.1 +/-    2.80      23.1 +/-    2.80  0.180 / 0.390
G25     243.8          54.4               10.2 +/-    1.66      12.3 +/-    1.66  0.200 / 0.410
G29     325.8          50.4                9.1 +/-    0.90      11.4 +/-    0.90  0.040 / 0.030