PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-15:57:30
G02     359.3          75.3               17.2 +/-    0.46      17.7 +/-    0.46  0.080 / 0.070
G05     165.6          36.4               16.8 +/-    1.41      25.9 +/-    1.41  0.060 / 0.070
G06     43.0           36.7               12.8 +/-    1.46      19.7 +/-    1.46  0.030 / 0.030
G12     298.9          75.6               12.0 +/-    1.03      12.3 +/-    1.03  0.020 / 0.020
G19     81.3           22.4               11.4 +/-    2.33      23.7 +/-    2.33  0.200 / 0.290
G24     225.7          19.4               15.3 +/-    2.18      34.1 +/-    2.18  0.140 / 0.190
G25     315.6          36.5               12.6 +/-    0.86      19.4 +/-    0.86  0.040 / 0.080
G29     292.1          15.7               10.6 +/-    1.70      25.8 +/-    1.70  0.060 / 0.080