PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-19:58:00
G01     107.0          25.0               13.6 +/-    1.06      26.6 +/-    1.06  0.050 / 0.050
G07     109.8          52.8               13.4 +/-    0.70      16.3 +/-    0.70  0.070 / 0.060
G08     41.7           19.7                8.6 +/-    2.45      19.1 +/-    2.45  0.030 / 0.040
G09     175.5          15.1               15.1 +/-    1.92      37.4 +/-    1.92  0.040 / 0.040
G11     87.5           42.9               12.3 +/-    0.56      17.2 +/-    0.56  0.030 / 0.020
G13     309.5          29.2               10.8 +/-    1.25      19.2 +/-    1.25  0.030 / 0.030
G17     204.7          38.3               14.3 +/-    0.90      21.4 +/-    0.90  0.180 / 0.250
G18     78.2           23.6               11.5 +/-    1.17      23.2 +/-    1.17  0.200 / 0.260
G28     308.7          59.2               11.4 +/-    1.01      13.1 +/-    1.01  0.100 / 0.190
G30     28.1           78.3               12.8 +/-    1.01      13.0 +/-    1.01  0.100 / 0.160