PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-22:12:50
G01     109.1          24.0               12.8 +/-    1.28      25.6 +/-    1.28  0.030 / 0.040
G07     106.4          55.4               13.2 +/-    0.46      15.6 +/-    0.46  0.030 / 0.040
G08     41.8           20.6                9.2 +/-    2.65      20.0 +/-    2.65  0.080 / 0.140
G09     175.5          16.4               13.7 +/-    2.64      32.9 +/-    2.64  0.080 / 0.150
G11     89.9           42.7               12.8 +/-    0.71      17.9 +/-    0.71  0.040 / 0.060
G13     311.1          27.8                8.6 +/-    2.28      15.7 +/-    2.28  0.050 / 0.060
G17     203.7          37.2               13.0 +/-    1.65      19.8 +/-    1.65  0.170 / 0.310
G18     79.4           23.1               10.3 +/-    1.08      21.0 +/-    1.08  0.180 / 0.340
G28     306.2          59.0               11.3 +/-    0.87      12.9 +/-    0.87  0.100 / 0.170
G30     14.5           77.0               11.3 +/-    0.64      11.6 +/-    0.64  0.100 / 0.150