PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-13:27:50
G01     103.0          26.6                8.0 +/-    1.17      15.1 +/-    1.17  0.230 / 0.350
G07     112.9          52.2                8.6 +/-    0.62      10.6 +/-    0.62  0.200 / 0.400
G08     41.9           20.4                6.7 +/-    2.63      14.5 +/-    2.63  0.060 / 0.060
G09     174.7          12.1                6.1 +/-    1.64      16.2 +/-    1.64  0.030 / 0.060
G11     84.5           43.6                9.0 +/-    0.83      12.4 +/-    0.83  0.070 / 0.200
G13     306.6          31.5                6.0 +/-    1.51      10.2 +/-    1.51  0.080 / 0.150
G17     207.0          37.7                8.7 +/-    1.46      13.2 +/-    1.46  0.060 / 0.070
G18     76.1           24.4                8.4 +/-    1.09      16.6 +/-    1.09  0.070 / 0.080
G28     311.6          59.2                6.6 +/-    1.03       7.5 +/-    1.03  0.030 / 0.050
G30     45.6           79.4                8.2 +/-    1.13       8.3 +/-    1.13  0.030 / 0.040