PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-22:12:00
G02     45.0           44.7                8.4 +/-    1.64      11.4 +/-    1.64  0.040 / 0.040
G05     99.5           69.2                9.6 +/-    0.72      10.2 +/-    0.72  0.040 / 0.040
G12     190.7          53.7               11.3 +/-    1.18      13.6 +/-    1.18  0.070 / 0.080
G25     270.9          58.3               11.4 +/-    1.21      13.1 +/-    1.21  0.060 / 0.060
G29     318.0          40.5               10.0 +/-    0.92      14.5 +/-    0.92  0.030 / 0.040