PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-02:27:40
G08     282.2          23.0               10.4 +/-    1.08      21.2 +/-    1.08  0.030 / 0.030
G10     24.9           63.1                9.0 +/-    0.69      10.0 +/-    0.69  0.040 / 0.030
G14     240.1          55.9               10.6 +/-    1.42      12.5 +/-    1.42  0.050 / 0.130
G18     73.4           47.2                8.4 +/-    0.75      11.0 +/-    0.75  0.050 / 0.130
G21     149.8          31.0               10.9 +/-    1.16      18.7 +/-    1.16  0.070 / 0.170
G24     49.8           22.3                9.2 +/-    0.98      19.2 +/-    0.98  0.070 / 0.140
G27     243.8          26.3               12.7 +/-    1.26      24.2 +/-    1.26  0.040 / 0.070
G31     182.3          13.5               11.7 +/-    0.94      30.1 +/-    0.94  0.040 / 0.070
G32     266.6          72.3                9.8 +/-    0.61      10.3 +/-    0.61  0.090 / 0.140