PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-17:57:30
G10     255.3          30.8               11.3 +/-    2.26      19.4 +/-    2.26  0.060 / 0.050
G13     48.9           26.4               10.5 +/-    1.16      20.0 +/-    1.16  0.060 / 0.050
G15     80.9           58.2               10.8 +/-    0.67      12.5 +/-    0.67  0.120 / 0.470
G16     290.5          15.0                9.7 +/-    1.29      24.2 +/-    1.29  0.130 / 0.540
G20     277.5          54.2               13.4 +/-    1.09      16.2 +/-    1.09  0.070 / 0.170
G21     343.2          64.6                9.3 +/-    0.98      10.2 +/-    0.98  0.070 / 0.200
G26     263.8          13.3               10.4 +/-    1.08      27.0 +/-    1.08  0.030 / 0.040
G29     165.6          43.8               12.5 +/-    1.05      17.1 +/-    1.05  0.030 / 0.040