PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-23:12:50
G01     75.5           33.0                9.5 +/-    0.47      15.6 +/-    0.47  0.040 / 0.060
G07     134.7          30.2               10.4 +/-    1.11      18.1 +/-    1.11  0.040 / 0.060
G11     55.4           32.5                6.8 +/-    0.77      11.4 +/-    0.77  0.090 / 0.190
G13     279.1          38.5                9.4 +/-    0.99      14.0 +/-    0.99  0.070 / 0.190
G15     305.7          14.5                5.6 +/-    2.34      14.0 +/-    2.34  0.030 / 0.040
G17     226.1          67.4                9.7 +/-    0.91      10.5 +/-    0.91  0.030 / 0.040
G18     49.8           18.1                6.9 +/-    1.18      16.0 +/-    1.18  0.110 / 0.110
G19     220.6          37.7                9.3 +/-    1.19      14.1 +/-    1.19  0.220 / 0.290
G28     4.6            61.1                7.9 +/-    0.87       8.8 +/-    0.87  0.070 / 0.120
G30     130.7          65.6               10.2 +/-    0.68      11.1 +/-    0.68  0.080 / 0.120