PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/30-00:27:50
G10     266.6          38.0               11.6 +/-    1.21      17.4 +/-    1.21  0.120 / 0.170
G13     42.0           18.5                7.9 +/-    0.58      18.0 +/-    0.58  0.120 / 0.170
G15     61.8           51.6                9.2 +/-    0.52      11.3 +/-    0.52  0.160 / 0.390
G16     277.9          12.4               10.0 +/-    1.56      26.4 +/-    1.56  0.140 / 0.480
G20     274.4          41.2                8.1 +/-    0.47      11.6 +/-    0.47  0.070 / 0.080
G21     359.0          71.1                9.7 +/-    0.80      10.2 +/-    0.80  0.070 / 0.070
G24     119.4          14.1               11.7 +/-    1.84      29.7 +/-    1.84  0.200 / 0.380
G27     318.9          18.4                8.4 +/-    1.39      19.2 +/-    1.39  0.210 / 0.350
G29     168.3          32.7               11.9 +/-    0.84      19.7 +/-    0.84  0.040 / 0.050
G32     203.8          10.3              -11.2 +/-   41.64     -31.1 +/-   41.64  0.040 / 0.040