PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-22:57:40
G01     74.7           33.0                9.2 +/-    0.80      15.2 +/-    0.80  0.040 / 0.050
G07     135.1          29.5               10.5 +/-    1.22      18.6 +/-    1.22  0.050 / 0.060
G11     55.0           32.1                6.7 +/-    0.48      11.3 +/-    0.48  0.050 / 0.100
G13     278.3          38.5                8.1 +/-    1.11      12.1 +/-    1.11  0.060 / 0.140
G15     305.1          14.7                7.2 +/-    4.10      18.1 +/-    4.10  0.030 / 0.040
G17     227.0          67.9               10.7 +/-    1.44      11.4 +/-    1.44  0.030 / 0.040
G18     49.3           17.9                6.6 +/-    1.71      15.3 +/-    1.71  0.070 / 0.120
G19     221.1          38.4               11.7 +/-    2.78      17.5 +/-    2.78  0.240 / 0.300
G28     5.7            61.0                8.4 +/-    0.70       9.4 +/-    0.70  0.070 / 0.090
G30     131.6          64.9                8.5 +/-    1.22       9.2 +/-    1.22  0.070 / 0.100