PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-17:58:00
G01     105.5          25.7               12.5 +/-    1.77      24.1 +/-    1.77  0.070 / 0.060
G07     111.7          51.2               11.5 +/-    1.69      14.3 +/-    1.69  0.040 / 0.060
G08     41.7           19.5               11.1 +/-    2.00      24.7 +/-    2.00  0.040 / 0.040
G09     175.4          14.2               10.3 +/-    1.82      26.0 +/-    1.82  0.030 / 0.040
G11     86.1           43.1               13.7 +/-    1.16      19.0 +/-    1.16  0.030 / 0.020
G13     308.4          30.1               13.0 +/-    1.61      22.7 +/-    1.61  0.030 / 0.030
G17     205.4          38.6               12.5 +/-    2.11      18.6 +/-    2.11  0.070 / 0.170
G18     77.4           23.9               11.6 +/-    1.11      23.3 +/-    1.11  0.060 / 0.150
G28     310.2          59.3               11.1 +/-    1.08      12.7 +/-    1.08  0.110 / 0.180
G30     41.0           78.7               11.6 +/-    0.90      11.8 +/-    0.90  0.100 / 0.190