PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-00:12:50
G02     203.2          36.7                9.1 +/-    0.97      14.1 +/-    0.97  0.080 / 0.080
G06     167.1          67.4                8.7 +/-    0.33       9.3 +/-    0.33  0.090 / 0.090
G12     307.0          13.9                6.7 +/-    3.02      17.0 +/-    3.02  0.040 / 0.040
G17     38.2           47.1                7.1 +/-    1.26       9.3 +/-    1.26  0.030 / 0.030
G19     3.3            64.7                7.2 +/-    0.99       7.9 +/-    0.99  0.090 / 0.230
G24     294.8          39.7                8.8 +/-    7.13      12.8 +/-    7.13  0.150 / 0.290
G28     101.5          33.8                9.7 +/-    0.99      15.7 +/-    0.99  0.050 / 0.130