PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-09:12:50
G01     90.4           30.7                5.1 +/-    0.53       8.8 +/-    0.53  0.040 / 0.060
G07     123.9          45.3                6.5 +/-    0.80       8.8 +/-    0.80  0.040 / 0.060
G08     42.2           11.0                3.2 +/-    1.96       8.7 +/-    1.96  0.040 / 0.050
G11     71.7           42.3                4.8 +/-    0.83       6.8 +/-    0.83  0.040 / 0.050
G13     295.5          36.7                5.4 +/-    5.23       8.4 +/-    5.23  0.110 / 0.180
G17     212.4          49.7                7.3 +/-    0.73       9.3 +/-    0.73  0.160 / 0.150
G18     64.8           24.1                4.6 +/-    1.39       9.2 +/-    1.39  0.110 / 0.200
G19     212.7          27.5                5.8 +/-    2.26      10.7 +/-    2.26  0.090 / 0.360
G28     329.7          60.8                4.0 +/-    0.74       4.5 +/-    0.74  0.030 / 0.020
G30     92.9           79.0                5.2 +/-    0.30       5.3 +/-    0.30  0.030 / 0.020