PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-00:58:10
G01     318.3          20.9                9.0 +/-    2.25      19.3 +/-    2.25  0.250 / 0.320
G08     259.7          12.7               11.2 +/-    3.26      29.5 +/-    3.26  0.160 / 0.270
G10     83.2           50.6               10.6 +/-    0.71      13.3 +/-    0.71  0.040 / 0.050
G11     302.6          22.7                9.4 +/-    0.94      19.4 +/-    0.94  0.040 / 0.040
G14     296.1          70.2                9.3 +/-    0.96       9.8 +/-    0.96  0.050 / 0.090
G18     302.9          42.2               10.3 +/-    1.16      14.5 +/-    1.16  0.060 / 0.080
G20     107.2          27.3               10.1 +/-    1.03      18.8 +/-    1.03  0.250 / 0.310
G31     173.9          44.9               12.2 +/-    0.86      16.5 +/-    0.86  0.180 / 0.260
G32     10.5           66.5                8.1 +/-    0.95       8.7 +/-    0.95  0.030 / 0.030