PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-19:12:50
G01     76.6           32.9                9.7 +/-    1.07      16.1 +/-    1.07  0.030 / 0.030
G07     134.0          29.4               13.1 +/-    1.69      23.3 +/-    1.69  0.030 / 0.030
G11     56.6           33.8                9.9 +/-    2.59      16.0 +/-    2.59  0.060 / 0.100
G13     280.4          38.6                8.0 +/-    1.00      11.9 +/-    1.00  0.070 / 0.100
G15     306.3          14.4                5.6 +/-    3.01      14.0 +/-    3.01  0.040 / 0.050
G17     224.0          64.4               12.3 +/-    0.81      13.5 +/-    0.81  0.040 / 0.050
G18     51.7           19.5                9.4 +/-    1.88      20.8 +/-    1.88  0.060 / 0.110
G19     219.7          37.6               11.2 +/-    2.43      16.9 +/-    2.43  0.060 / 0.120
G28     0.1            61.3               10.2 +/-    1.11      11.5 +/-    1.11  0.140 / 0.280
G30     129.5          64.6               12.2 +/-    0.49      13.3 +/-    0.49  0.080 / 0.180