PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/30-14:12:50
G01     81.2           33.1                6.6 +/-    0.86      10.9 +/-    0.86  0.030 / 0.030
G07     131.8          38.8                7.8 +/-    1.15      11.5 +/-    1.15  0.030 / 0.030
G11     60.0           35.5                5.3 +/-    0.59       8.4 +/-    0.59  0.060 / 0.100
G13     285.2          37.8                6.8 +/-    1.12      10.3 +/-    1.12  0.060 / 0.120
G15     312.1          11.2                5.0 +/-    2.07      13.6 +/-    2.07  0.040 / 0.060
G17     221.2          61.6                9.4 +/-    1.02      10.6 +/-    1.02  0.040 / 0.060
G18     56.1           21.6                4.8 +/-    0.98      10.2 +/-    0.98  0.070 / 0.120
G19     218.6          30.9                8.7 +/-    1.00      15.0 +/-    1.00  0.060 / 0.100
G28     3.4            61.0                6.8 +/-    0.63       7.6 +/-    0.63  0.050 / 0.070
G30     122.7          71.2                7.5 +/-    0.54       7.9 +/-    0.54  0.060 / 0.070