PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-16:12:50
G02     15.9           68.3               10.7 +/-    0.69      11.4 +/-    0.69  0.050 / 0.050
G05     161.1          45.3               14.0 +/-    0.65      18.8 +/-    0.65  0.040 / 0.070
G06     46.2           29.3                9.6 +/-    1.88      17.0 +/-    1.88  0.100 / 0.310
G12     255.6          79.4               12.1 +/-    0.63      12.3 +/-    0.63  0.110 / 0.460
G19     88.7           17.3               11.6 +/-    2.30      27.3 +/-    2.30  0.040 / 0.030
G20     197.7          12.0               10.0 +/-   21.01      26.6 +/-   21.01  0.030 / 0.020
G24     219.7          13.5               14.4 +/-    5.62      37.2 +/-    5.62  0.030 / 0.040
G25     311.2          44.2               10.9 +/-    1.28      14.8 +/-    1.28  0.050 / 0.040
G29     298.5          21.2               11.1 +/-    0.99      23.6 +/-    0.99  0.160 / 0.460