PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/24-20:57:50
G01     111.3          22.6               11.4 +/-    1.32      23.5 +/-    1.32  0.030 / 0.040
G07     103.2          56.7               13.0 +/-    0.95      15.2 +/-    0.95  0.030 / 0.040
G08     42.2           23.1                8.8 +/-    1.51      18.1 +/-    1.51  0.090 / 0.230
G09     176.2          19.0               14.5 +/-    2.76      32.7 +/-    2.76  0.120 / 0.200
G11     93.5           42.5               12.2 +/-    1.18      17.1 +/-    1.18  0.070 / 0.060
G13     312.7          26.2               10.4 +/-    1.50      19.8 +/-    1.50  0.050 / 0.060
G17     203.0          34.2               13.9 +/-    1.21      22.4 +/-    1.21  0.120 / 0.180
G18     82.5           22.8                9.4 +/-    1.31      19.3 +/-    1.31  0.120 / 0.160
G28     301.1          58.0               11.4 +/-    1.27      13.2 +/-    1.27  0.030 / 0.020
G30     7.9            75.6               11.3 +/-    0.80      11.6 +/-    0.80  0.030 / 0.020