PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/15-22:12:50
G01     38.2           11.6               10.3 +/-    3.66      27.6 +/-    3.66  0.090 / 0.130
G02     199.2          13.8               16.8 +/-    4.42      43.0 +/-    4.42  0.100 / 0.160
G06     175.9          42.6               17.6 +/-    1.16      24.6 +/-    1.16  0.150 / 0.260
G13     232.1          18.5               14.7 +/-    2.61      33.6 +/-    2.61  0.150 / 0.290
G17     13.5           65.3               11.0 +/-    1.08      12.0 +/-    1.08  0.030 / 0.020
G19     295.6          71.2               11.2 +/-    0.43      11.8 +/-    0.43  0.040 / 0.030
G24     313.6          24.9                9.4 +/-    1.41      18.5 +/-    1.41  0.040 / 0.060
G28     75.0           47.2               11.5 +/-    1.36      15.0 +/-    1.36  0.040 / 0.050
G30     155.5          20.6               14.9 +/-    1.20      32.3 +/-    1.20  0.130 / 0.200