PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-00:28:00
G02     203.6          37.9                9.9 +/-    0.78      15.0 +/-    0.78  0.060 / 0.080
G06     166.2          68.7               10.3 +/-    0.72      11.0 +/-    0.72  0.100 / 0.080
G12     307.7          14.8                5.7 +/-    2.96      14.3 +/-    2.96  0.040 / 0.040
G17     39.3           46.1                7.4 +/-    0.70       9.8 +/-    0.70  0.040 / 0.030
G19     5.6            63.9                7.9 +/-    0.61       8.7 +/-    0.61  0.200 / 0.320
G24     293.3          40.3               10.0 +/-   10.29      14.4 +/-   10.29  0.120 / 0.270
G28     102.7          33.0                8.2 +/-    1.08      13.6 +/-    1.08  0.070 / 0.130