PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-02:28:10
G02     60.0           31.9                8.3 +/-    0.99      14.1 +/-    0.99  0.130 / 0.090
G05     57.2           59.8                9.5 +/-    0.64      10.8 +/-    0.64  0.090 / 0.130
G12     184.6          32.4               12.5 +/-    1.38      20.8 +/-    1.38  0.030 / 0.040
G13     128.5          15.1               13.5 +/-    2.15      33.5 +/-    2.15  0.030 / 0.040
G15     163.8          12.1               14.9 +/-    3.22      39.8 +/-    3.22  0.050 / 0.070
G20     218.2          16.2               16.9 +/-    1.42      40.9 +/-    1.42  0.040 / 0.060
G21     271.1          16.9               13.5 +/-    3.39      32.0 +/-    3.39  0.050 / 0.110
G25     238.1          52.0               11.4 +/-    0.97      14.0 +/-    0.97  0.060 / 0.100
G29     327.7          53.7                8.9 +/-    0.87      10.8 +/-    0.87  0.150 / 0.610