PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-20:57:30
G02     10.4           70.4               10.3 +/-    0.38      10.8 +/-    0.38  0.030 / 0.070
G05     157.7          45.6               13.6 +/-    1.20      18.2 +/-    1.20  0.040 / 0.060
G06     45.9           28.3                7.4 +/-    0.42      13.5 +/-    0.42  0.030 / 0.030
G12     250.7          81.1               10.5 +/-    0.75      10.7 +/-    0.75  0.020 / 0.030
G19     84.4           22.5                8.6 +/-    1.39      17.8 +/-    1.39  0.040 / 0.040
G24     218.9          14.2               15.6 +/-    3.91      39.6 +/-    3.91  0.040 / 0.060
G25     313.4          39.7                9.9 +/-    2.01      14.5 +/-    2.01  0.150 / 0.340
G29     294.3          14.9               10.7 +/-    2.29      26.7 +/-    2.29  0.180 / 0.400