PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-21:43:00
G01     125.6          12.3               14.1 +/-    2.02      37.5 +/-    2.02  0.060 / 0.080
G07     67.9           66.7               10.4 +/-    0.50      11.2 +/-    0.50  0.060 / 0.080
G08     48.6           36.7                7.7 +/-    0.57      11.8 +/-    0.57  0.100 / 0.320
G09     178.2          35.3               13.1 +/-    1.93      20.7 +/-    1.93  0.090 / 0.280
G11     114.8          36.7               11.6 +/-    1.49      17.8 +/-    1.49  0.030 / 0.040
G13     320.5          13.4                7.9 +/-    2.15      20.5 +/-    2.15  0.050 / 0.040
G17     199.1          17.8               15.9 +/-    1.00      36.9 +/-    1.00  0.100 / 0.460
G18     99.0           17.2               11.5 +/-    2.06      27.1 +/-    2.06  0.100 / 0.390
G28     274.1          50.9               10.6 +/-    0.84      13.2 +/-    0.84  0.020 / 0.040
G30     334.5          61.9                9.6 +/-    0.68      10.7 +/-    0.68  0.030 / 0.040