PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-10:27:50
G01     320.6          13.7               -8.8 +/-   28.49     -22.5 +/-   28.49  0.040 / 0.030
G08     262.0          16.2                8.1 +/-    1.94      19.6 +/-    1.94  0.030 / 0.030
G10     71.3           55.1                5.7 +/-    0.55       6.8 +/-    0.55  0.100 / 0.320
G11     307.2          20.8                4.1 +/-    2.40       8.9 +/-    2.40  0.100 / 0.310
G14     280.9          69.6                5.4 +/-    0.70       5.7 +/-    0.70  0.090 / 0.340
G18     308.3          38.1                5.5 +/-    0.78       8.3 +/-    0.78  0.080 / 0.200
G20     100.5          32.9                6.1 +/-    0.61      10.1 +/-    0.61  0.030 / 0.030
G27     229.6          13.1                5.3 +/-    2.03      13.9 +/-    2.03  0.030 / 0.030
G31     178.1          34.7                6.6 +/-    1.57      10.6 +/-    1.57  0.040 / 0.050
G32     335.1          73.0                4.7 +/-    0.80       4.9 +/-    0.80  0.040 / 0.060