PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-23:57:40
G01     41.0           16.4                6.1 +/-    2.69      14.7 +/-    2.69  0.230 / 0.260
G06     178.3          34.7                9.5 +/-    1.13      15.2 +/-    1.13  0.230 / 0.440
G13     237.2          22.7               10.1 +/-    2.12      20.8 +/-    2.12  0.030 / 0.020
G15     270.7          12.4                7.1 +/-    3.25      18.8 +/-    3.25  0.030 / 0.030
G17     5.2            69.8                7.0 +/-    0.31       7.4 +/-    0.31  0.080 / 0.280
G19     274.7          68.7                8.2 +/-    0.78       8.8 +/-    0.78  0.110 / 0.150
G24     315.9          20.5                4.3 +/-    2.49       9.3 +/-    2.49  0.180 / 0.310
G28     67.0           49.8                8.1 +/-    1.03      10.3 +/-    1.03  0.220 / 0.310
G30     154.3          27.6               11.0 +/-    1.20      20.3 +/-    1.20  0.030 / 0.040