PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-01:28:00
G01     320.8          11.3               -8.1 +/-   40.08     -21.9 +/-   40.08  0.150 / 0.330
G08     263.1          17.0               14.8 +/-    1.50      35.1 +/-    1.50  0.150 / 0.320
G10     64.9           58.0               11.3 +/-    0.57      13.1 +/-    0.57  0.030 / 0.030
G11     308.5          20.2               13.8 +/-    3.80      30.3 +/-    3.80  0.030 / 0.030
G14     276.8          68.9               12.5 +/-    0.93      13.2 +/-    0.93  0.100 / 0.380
G18     94.2           34.9               12.1 +/-    0.41      19.2 +/-    0.41  0.140 / 0.370
G21     154.3          11.6               12.1 +/-    3.67      32.6 +/-    3.67  0.230 / 0.380
G27     228.4          13.6               16.5 +/-    2.25      42.4 +/-    2.25  0.200 / 0.350
G31     179.3          31.5               14.6 +/-    2.30      24.8 +/-    2.30  0.040 / 0.050
G32     337.6          73.3               13.1 +/-    0.37      13.6 +/-    0.37  0.040 / 0.050