PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-15:58:20
G01     38.9           13.1                6.9 +/-    3.73      17.9 +/-    3.73  0.040 / 0.060
G06     173.3          42.5               11.5 +/-    0.87      16.0 +/-    0.87  0.040 / 0.080
G13     233.7          20.3               11.1 +/-    2.50      24.2 +/-    2.50  0.230 / 0.390
G15     267.7          11.0                9.7 +/-    1.76      26.5 +/-    1.76  0.130 / 0.260
G17     1.1            69.8               10.1 +/-    0.96      10.6 +/-    0.96  0.040 / 0.040
G19     290.2          71.4               10.3 +/-    0.47      10.8 +/-    0.47  0.030 / 0.040
G24     315.3          21.4                8.9 +/-    3.43      18.9 +/-    3.43  0.030 / 0.040
G28     69.9           49.7               10.2 +/-    1.26      12.9 +/-    1.26  0.040 / 0.040
G30     155.0          23.1               10.2 +/-    1.89      20.8 +/-    1.89  0.070 / 0.070