PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-01:43:00
G02     52.5           38.0                8.6 +/-    0.81      12.9 +/-    0.81  0.040 / 0.050
G05     73.9           66.5                9.6 +/-    0.36      10.4 +/-    0.36  0.040 / 0.050
G12     188.5          44.9               12.0 +/-    2.02      16.2 +/-    2.02  0.060 / 0.080
G21     264.7          12.5               10.3 +/-    4.76      27.1 +/-    4.76  0.070 / 0.080
G25     251.7          57.1                9.5 +/-    0.91      11.1 +/-    0.91  0.200 / 0.580
G29     325.2          49.4               10.5 +/-    0.80      13.4 +/-    0.80  0.210 / 0.440