PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-21:27:50
G01     120.7          16.2               11.7 +/-    1.53      28.2 +/-    1.53  0.110 / 0.220
G07     83.2           63.8               11.5 +/-    0.67      12.6 +/-    0.67  0.120 / 0.280
G08     45.3           31.8                8.0 +/-    0.31      13.5 +/-    0.31  0.040 / 0.080
G09     177.5          29.0               12.1 +/-    2.74      21.6 +/-    2.74  0.050 / 0.070
G11     107.5          39.5               11.6 +/-    0.78      16.9 +/-    0.78  0.040 / 0.040
G13     318.4          18.3               10.0 +/-    2.07      22.9 +/-    2.07  0.040 / 0.050
G17     200.1          23.8               11.8 +/-    1.62      23.7 +/-    1.62  0.090 / 0.260
G18     93.2           19.7               11.1 +/-    0.92      24.7 +/-    0.92  0.080 / 0.240
G28     283.4          53.9               10.5 +/-    1.17      12.7 +/-    1.17  0.030 / 0.040
G30     343.3          67.1                9.4 +/-    1.14      10.1 +/-    1.14  0.030 / 0.050