PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-01:12:40
G10     260.9          34.4               12.8 +/-    1.38      20.6 +/-    1.38  0.110 / 0.190
G13     45.0           22.6                9.0 +/-    2.08      18.6 +/-    2.08  0.160 / 0.250
G15     68.9           54.6                9.1 +/-    0.70      10.8 +/-    0.70  0.050 / 0.040
G16     283.2          14.0                9.7 +/-    2.16      24.7 +/-    2.16  0.040 / 0.030
G20     273.4          45.0               12.0 +/-    1.98      16.2 +/-    1.98  0.150 / 0.260
G21     348.4          67.4               10.7 +/-    0.69      11.5 +/-    0.69  0.170 / 0.300
G24     124.1          10.9               14.3 +/-    4.46      39.0 +/-    4.46  0.140 / 0.210
G27     320.9          14.1                8.5 +/-    1.29      21.7 +/-    1.29  0.250 / 0.240
G29     167.6          38.5               10.9 +/-    1.44      16.2 +/-    1.44  0.120 / 0.440