PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-01:27:50
G08     272.4          18.0                8.0 +/-    1.37      18.5 +/-    1.37  0.270 / 0.190
G10     62.6           57.1                8.0 +/-    0.73       9.4 +/-    0.73  0.210 / 0.250
G14     263.3          65.0                7.9 +/-    1.02       8.6 +/-    1.02  0.040 / 0.090
G18     312.6          32.2                6.7 +/-    1.30      11.3 +/-    1.30  0.050 / 0.050
G20     95.4           36.6                6.9 +/-    1.27      10.7 +/-    1.27  0.150 / 0.250
G21     155.3          16.6                7.6 +/-    1.39      18.1 +/-    1.39  0.180 / 0.340
G24     40.3           10.7                6.3 +/-    2.13      17.2 +/-    2.13  0.110 / 0.180
G27     232.3          16.6                9.5 +/-    0.95      22.8 +/-    0.95  0.130 / 0.190
G31     177.1          31.2                3.5 +/-    1.72       6.0 +/-    1.72  0.070 / 0.120
G32     336.1          74.6                6.9 +/-    0.38       7.1 +/-    0.38  0.090 / 0.130