PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/21-08:27:50
G01     113.7          20.1                4.6 +/-    1.02      10.0 +/-    1.02  0.040 / 0.040
G07     92.5           62.7                5.3 +/-    0.56       5.9 +/-    0.56  0.040 / 0.030
G08     44.1           30.1                2.4 +/-    0.75       4.3 +/-    0.75  0.030 / 0.030
G09     175.5          21.4                5.2 +/-    0.78      11.0 +/-    0.78  0.030 / 0.040
G11     103.1          42.7                5.1 +/-    0.41       7.1 +/-    0.41  0.070 / 0.150
G13     315.0          23.9                2.0 +/-    2.32       3.9 +/-    2.32  0.080 / 0.120
G17     202.5          26.7                4.1 +/-    1.10       7.7 +/-    1.10  0.080 / 0.210
G18     89.1           22.3                3.2 +/-    1.12       6.6 +/-    1.12  0.080 / 0.180
G28     289.1          54.3                5.2 +/-    0.67       6.3 +/-    0.67  0.100 / 0.130
G30     349.5          71.1                4.1 +/-    0.40       4.3 +/-    0.40  0.090 / 0.150