PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-05:43:00
G01     118.7          16.4                7.3 +/-    2.51      17.5 +/-    2.51  0.040 / 0.040
G07     76.9           66.9                8.7 +/-    0.51       9.4 +/-    0.51  0.040 / 0.040
G08     46.0           33.6                5.0 +/-    0.58       8.2 +/-    0.58  0.060 / 0.110
G09     175.2          26.1                9.4 +/-    0.86      17.9 +/-    0.86  0.060 / 0.090
G11     112.5          40.5                9.3 +/-    0.69      13.5 +/-    0.69  0.110 / 0.280
G13     318.0          19.3                4.6 +/-    1.54      10.3 +/-    1.54  0.110 / 0.340
G17     200.6          21.9                6.9 +/-    2.69      14.4 +/-    2.69  0.030 / 0.040
G28     278.8          50.8                8.2 +/-    1.49      10.3 +/-    1.49  0.030 / 0.040
G30     337.5          64.9                7.5 +/-    0.72       8.2 +/-    0.72  0.050 / 0.090