PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-21:58:10
G01     84.8           32.4                9.9 +/-    1.45      16.6 +/-    1.45  0.040 / 0.070
G07     129.5          36.7               11.6 +/-    0.34      17.9 +/-    0.34  0.040 / 0.070
G11     62.4           37.2               10.3 +/-    0.87      15.7 +/-    0.87  0.040 / 0.040
G13     289.0          37.8               12.5 +/-    1.39      18.9 +/-    1.39  0.040 / 0.040
G15     311.9          12.1                8.7 +/-    2.63      23.2 +/-    2.63  0.180 / 0.200
G17     216.8          59.4               12.5 +/-    0.75      14.3 +/-    0.75  0.110 / 0.180
G18     56.9           21.3                9.6 +/-    2.41      20.3 +/-    2.41  0.070 / 0.090
G19     216.1          30.8               12.6 +/-    3.00      21.7 +/-    3.00  0.070 / 0.080
G28     348.8          61.7                9.6 +/-    0.51      10.7 +/-    0.51  0.030 / 0.020
G30     117.2          72.2               12.4 +/-    0.40      13.0 +/-    0.40  0.030 / 0.020