PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/01-00:28:00
G01     320.7          11.8              -15.2 +/-   27.97     -40.9 +/-   27.97  0.030 / 0.030
G08     262.7          16.7               15.4 +/-    0.67      36.8 +/-    0.67  0.030 / 0.020
G10     66.1           57.7               14.5 +/-    0.99      16.8 +/-    0.99  0.180 / 0.480
G11     308.3          20.3               10.5 +/-    1.70      23.0 +/-    1.70  0.200 / 0.740
G14     278.2          69.1               11.8 +/-    0.67      12.6 +/-    0.67  0.180 / 0.210
G18     95.0           34.1               14.0 +/-    1.08      22.6 +/-    1.08  0.230 / 0.440
G21     154.3          10.5               13.3 +/-    3.98      36.8 +/-    3.98  0.100 / 0.190
G27     228.0          13.2               15.1 +/-    2.20      39.2 +/-    2.20  0.060 / 0.090
G31     179.8          31.5               16.7 +/-    0.73      28.3 +/-    0.73  0.090 / 0.070
G32     337.2          73.1               12.6 +/-    0.61      13.1 +/-    0.61  0.030 / 0.040