PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-12:12:40
G01     38.8           13.0                0.8 +/-    0.73       2.1 +/-    0.73  0.170 / 0.310
G06     172.6          42.8                5.8 +/-    1.64       8.1 +/-    1.64  0.120 / 0.270
G13     233.8          20.6                4.6 +/-    1.24      10.0 +/-    1.24  0.040 / 0.070
G15     269.4          10.9                2.5 +/-    2.77       7.0 +/-    2.77  0.040 / 0.070
G17     0.9            70.0                4.1 +/-    0.71       4.4 +/-    0.71  0.040 / 0.030
G19     290.2          71.7                4.1 +/-    0.61       4.3 +/-    0.61  0.030 / 0.030
G24     315.7          20.4                2.5 +/-    2.51       5.3 +/-    2.51  0.040 / 0.030
G28     68.2           50.7                2.8 +/-    0.68       3.5 +/-    0.68  0.040 / 0.040
G30     155.7          25.8                5.4 +/-    1.27      10.3 +/-    1.27  0.100 / 0.300