PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-15:12:50
G01     52.6           26.8                7.4 +/-    2.48      13.9 +/-    2.48  0.040 / 0.040
G06     178.0          21.1               10.5 +/-    4.36      22.5 +/-    4.36  0.040 / 0.060
G07     144.2          12.5                9.0 +/-    1.49      23.7 +/-    1.49  0.110 / 0.300
G11     45.5           18.6                7.6 +/-    2.05      17.3 +/-    2.05  0.160 / 0.280
G13     253.3          33.1                9.2 +/-    2.27      15.1 +/-    2.27  0.110 / 0.160
G15     287.1          16.1                8.8 +/-    0.92      21.3 +/-    0.92  0.150 / 0.140
G17     278.6          77.5               10.7 +/-    0.52      10.9 +/-    0.52  0.030 / 0.030
G19     240.4          58.1               10.1 +/-    1.73      11.6 +/-    1.73  0.030 / 0.020
G28     37.2           57.7               10.9 +/-    1.14      12.7 +/-    1.14  0.090 / 0.060
G30     147.6          44.0                9.9 +/-    0.42      13.5 +/-    0.42  0.050 / 0.040