PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/10-21:43:00
G02     60.9           31.7                6.7 +/-    1.18      11.3 +/-    1.18  0.070 / 0.070
G05     54.6           58.7               10.2 +/-    0.93      11.8 +/-    0.93  0.090 / 0.080
G12     184.8          31.7                8.7 +/-    1.61      14.7 +/-    1.61  0.060 / 0.110
G13     124.9          16.5                9.8 +/-    1.54      23.5 +/-    1.54  0.090 / 0.100
G15     162.0          14.6                9.5 +/-    1.16      23.9 +/-    1.16  0.230 / 0.210
G21     273.4          18.2                9.1 +/-    3.05      21.0 +/-    3.05  0.120 / 0.240
G25     234.3          50.5                8.7 +/-    3.25      10.9 +/-    3.25  0.140 / 0.350
G29     331.4          57.7                8.9 +/-    0.97      10.3 +/-    0.97  0.120 / 0.270