PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-13:58:00
G01     104.4          26.0                7.3 +/-    0.86      14.0 +/-    0.86  0.060 / 0.070
G07     111.5          52.9                8.5 +/-    0.80      10.3 +/-    0.80  0.070 / 0.060
G08     42.0           21.1                7.2 +/-    2.95      15.4 +/-    2.95  0.050 / 0.100
G09     175.0          13.3                6.6 +/-    0.96      17.2 +/-    0.96  0.050 / 0.100
G11     86.1           43.6                8.2 +/-    1.00      11.3 +/-    1.00  0.030 / 0.040
G13     307.7          30.7                7.6 +/-    1.48      13.1 +/-    1.48  0.030 / 0.030
G17     206.3          36.8                8.4 +/-    1.09      13.0 +/-    1.09  0.060 / 0.080
G18     77.4           24.3                7.4 +/-    0.98      14.8 +/-    0.98  0.090 / 0.070
G28     309.5          58.9                7.1 +/-    1.29       8.1 +/-    1.29  0.070 / 0.120
G30     41.0           79.0                8.2 +/-    1.40       8.4 +/-    1.40  0.080 / 0.160