PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-16:28:10
G01     45.8           21.9                7.9 +/-    1.01      16.6 +/-    1.01  0.180 / 0.450
G06     176.4          29.2               11.7 +/-    1.65      20.9 +/-    1.65  0.140 / 0.360
G11     43.6           11.3                7.6 +/-    1.17      20.5 +/-    1.17  0.030 / 0.030
G13     244.6          28.3               10.7 +/-    2.84      19.5 +/-    2.84  0.020 / 0.030
G15     278.7          14.8               10.1 +/-    2.12      25.3 +/-    2.12  0.070 / 0.160
G17     325.4          77.3               11.9 +/-    0.95      12.2 +/-    0.95  0.060 / 0.160
G19     255.2          64.8               11.8 +/-    0.98      12.9 +/-    0.98  0.030 / 0.060
G24     318.5          11.5                2.8 +/-   36.98       7.5 +/-   36.98  0.040 / 0.070
G28     51.7           54.7               10.0 +/-    0.37      12.0 +/-    0.37  0.230 / 0.510
G30     151.1          34.6               12.1 +/-    1.04      19.4 +/-    1.04  0.190 / 0.500