PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/19-15:12:50
G01     45.2           21.3                7.6 +/-    3.01      16.1 +/-    3.01  0.180 / 0.350
G11     43.6           10.9                8.0 +/-    3.91      22.0 +/-    3.91  0.200 / 0.380
G13     243.7          27.9                9.3 +/-    1.51      17.0 +/-    1.51  0.040 / 0.020
G15     278.3          14.5                7.8 +/-    0.94      19.5 +/-    0.94  0.040 / 0.030
G17     324.4          77.0                8.6 +/-    0.38       8.8 +/-    0.38  0.040 / 0.060
G19     257.1          65.6               10.6 +/-    0.45      11.5 +/-    0.45  0.040 / 0.060
G24     318.4          11.9                1.3 +/-   24.69       3.3 +/-   24.69  0.040 / 0.040
G28     52.5           54.7               10.0 +/-    0.42      12.0 +/-    0.42  0.040 / 0.040
G30     151.7          34.8               10.2 +/-    0.82      16.2 +/-    0.82  0.140 / 0.200