PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-21:43:00
G01     75.3           33.0                9.2 +/-    1.34      15.2 +/-    1.34  0.080 / 0.100
G07     134.7          29.5               11.9 +/-    1.70      21.1 +/-    1.70  0.090 / 0.120
G11     55.5           32.7                7.7 +/-    1.55      12.8 +/-    1.55  0.050 / 0.110
G13     279.0          38.5                9.6 +/-    1.14      14.3 +/-    1.14  0.060 / 0.120
G15     305.5          14.6                4.9 +/-    2.64      12.4 +/-    2.64  0.040 / 0.050
G17     225.9          66.8               11.3 +/-    0.68      12.2 +/-    0.68  0.040 / 0.040
G18     50.2           18.5                8.4 +/-    3.71      19.1 +/-    3.71  0.080 / 0.120
G19     220.6          38.2               10.5 +/-    1.89      15.8 +/-    1.89  0.100 / 0.110
G28     3.8            61.1                8.3 +/-    0.57       9.4 +/-    0.57  0.030 / 0.020
G30     130.9          64.9               11.2 +/-    0.67      12.2 +/-    0.67  0.030 / 0.030