PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-15:43:00
G01     79.2           32.7                7.7 +/-    1.13      12.8 +/-    1.13  0.040 / 0.040
G07     132.3          33.5               10.2 +/-    1.07      16.6 +/-    1.07  0.040 / 0.040
G11     59.2           35.9                8.0 +/-    0.99      12.4 +/-    0.99  0.050 / 0.110
G13     283.4          38.7               12.0 +/-    2.27      17.9 +/-    2.27  0.060 / 0.100
G15     308.6          13.5                7.0 +/-    2.61      18.1 +/-    2.61  0.050 / 0.090
G17     220.9          59.8               11.7 +/-    1.50      13.3 +/-    1.50  0.050 / 0.100
G18     54.4           20.9                8.6 +/-    2.59      18.4 +/-    2.59  0.070 / 0.120
G19     218.1          35.9               10.9 +/-    1.44      17.0 +/-    1.44  0.070 / 0.120
G28     353.2          61.6                9.5 +/-    0.99      10.7 +/-    0.99  0.070 / 0.050
G30     126.1          66.6               10.3 +/-    0.67      11.1 +/-    0.67  0.040 / 0.060