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               13.4 +/-    2.00      35.6 +/-    2.00  0.120 / 0.390
G07     67.9           66.7                9.7 +/-    0.54      10.5 +/-    0.54  0.150 / 0.370
G08     48.6           36.7                8.5 +/-    1.22      13.1 +/-    1.22  0.100 / 0.130
G09     178.2          35.3               12.3 +/-    1.65      19.5 +/-    1.65  0.140 / 0.110
G11     114.8          36.7               10.8 +/-    0.78      16.6 +/-    0.78  0.070 / 0.100
G13     320.5          13.4                5.8 +/-   14.73      14.9 +/-   14.73  0.070 / 0.100
G17     199.1          17.8               13.4 +/-    2.97      31.2 +/-    2.97  0.030 / 0.040
G18     99.0           17.2               10.7 +/-    1.25      25.2 +/-    1.25  0.030 / 0.040
G28     274.1          50.9               11.2 +/-    3.44      14.0 +/-    3.44  0.050 / 0.070
G30     334.5          61.9                9.3 +/-    0.64      10.3 +/-    0.64  0.050 / 0.060