PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-14:12:50
G02     57.5           33.9                8.4 +/-    2.23      13.6 +/-    2.23  0.030 / 0.030
G05     65.9           65.3                9.2 +/-    0.50      10.0 +/-    0.50  0.030 / 0.030
G12     187.1          37.6               10.7 +/-    0.95      16.2 +/-    0.95  0.100 / 0.200
G13     132.3          12.6               15.7 +/-    3.31      41.3 +/-    3.31  0.160 / 0.180
G20     206.8          54.2               12.3 +/-    0.41      14.7 +/-    0.41  0.040 / 0.080
G21     269.7          18.7                6.3 +/-    1.64      14.2 +/-    1.64  0.050 / 0.070
G25     241.3          54.1                9.5 +/-    3.98      11.4 +/-    3.98  0.040 / 0.040
G29     330.3          56.1                7.4 +/-    0.51       8.7 +/-    0.51  0.040 / 0.050