PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-22:57:40
G01     93.0           30.8                9.1 +/-    1.56      15.6 +/-    1.56  0.070 / 0.120
G07     123.8          43.3                9.8 +/-    0.64      13.6 +/-    0.64  0.070 / 0.130
G11     69.8           40.2                8.0 +/-    0.75      11.5 +/-    0.75  0.040 / 0.050
G13     297.1          35.8                9.2 +/-    1.19      14.4 +/-    1.19  0.070 / 0.050
G17     211.4          52.9               10.7 +/-    0.79      13.1 +/-    0.79  0.130 / 0.190
G18     63.2           22.8                7.7 +/-    1.01      15.9 +/-    1.01  0.230 / 0.220
G19     213.0          24.2               11.0 +/-    2.46      21.9 +/-    2.46  0.040 / 0.050
G28     335.9          61.6                7.9 +/-    0.55       8.8 +/-    0.55  0.040 / 0.050
G30     94.2           77.8                8.1 +/-    0.45       8.2 +/-    0.45  0.090 / 0.170