PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-23:43:00
G02     12.9           69.4                9.7 +/-    0.75      10.3 +/-    0.75  0.050 / 0.070
G05     157.1          45.3               14.2 +/-    1.01      19.0 +/-    1.01  0.060 / 0.080
G06     44.3           32.1                8.7 +/-    1.72      14.7 +/-    1.72  0.200 / 0.460
G12     283.2          77.7               11.0 +/-    0.66      11.2 +/-    0.66  0.240 / 0.370
G19     84.9           19.9               11.2 +/-    1.86      24.8 +/-    1.86  0.040 / 0.030
G24     219.7          14.7               18.3 +/-    2.00      45.7 +/-    2.00  0.040 / 0.040
G25     313.5          39.2               10.4 +/-    1.45      15.3 +/-    1.45  0.020 / 0.030
G29     295.3          18.3               10.1 +/-    2.73      23.2 +/-    2.73  0.020 / 0.020