PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-08:12:40
G01     78.0           32.3                5.0 +/-    1.28       8.4 +/-    1.28  0.040 / 0.030
G07     132.2          36.9                7.1 +/-    0.65      10.8 +/-    0.65  0.040 / 0.030
G11     60.8           38.0                5.5 +/-    1.46       8.2 +/-    1.46  0.120 / 0.220
G13     282.9          38.9                2.7 +/-    5.52       4.0 +/-    5.52  0.120 / 0.190
G15     308.4          13.6                1.9 +/-    2.59       4.9 +/-    2.59  0.040 / 0.070
G17     220.7          60.8                8.6 +/-    1.42       9.7 +/-    1.42  0.040 / 0.070
G19     217.9          37.1                7.6 +/-    1.34      11.6 +/-    1.34  0.130 / 0.110
G28     348.9          61.5                3.5 +/-    0.65       4.0 +/-    0.65  0.090 / 0.120
G30     124.5          71.9                5.8 +/-    1.15       6.1 +/-    1.15  0.040 / 0.050