PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-15:43:00
G01     81.2           33.1               10.1 +/-    0.87      16.6 +/-    0.87  0.030 / 0.030
G07     131.8          38.9               11.7 +/-    0.94      17.4 +/-    0.94  0.040 / 0.030
G11     60.5           35.9                8.7 +/-    0.25      13.5 +/-    0.25  0.070 / 0.100
G13     285.3          37.7               10.8 +/-    1.14      16.3 +/-    1.14  0.090 / 0.110
G15     311.5          11.6                8.8 +/-    1.80      23.7 +/-    1.80  0.040 / 0.050
G17     221.3          60.5               13.0 +/-    0.69      14.7 +/-    0.69  0.040 / 0.050
G18     56.3           21.7                7.1 +/-    1.11      14.9 +/-    1.11  0.040 / 0.070
G19     218.6          31.4               11.6 +/-    1.67      19.7 +/-    1.67  0.040 / 0.080
G28     3.6            61.0               10.9 +/-    0.70      12.2 +/-    0.70  0.060 / 0.110
G30     123.1          70.6               12.5 +/-    0.98      13.2 +/-    0.98  0.060 / 0.120