PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-15:58:10
G01     59.6           30.0                8.7 +/-    1.01      15.3 +/-    1.01  0.090 / 0.280
G07     141.5          18.4               10.8 +/-    2.30      24.8 +/-    2.30  0.080 / 0.270
G11     48.0           24.1                7.2 +/-    0.90      14.4 +/-    0.90  0.040 / 0.060
G13     261.6          36.2               10.2 +/-    0.73      15.8 +/-    0.73  0.040 / 0.060
G15     293.6          16.4                5.9 +/-    1.98      14.1 +/-    1.98  0.070 / 0.220
G17     252.1          74.4               10.9 +/-    0.80      11.2 +/-    0.80  0.070 / 0.180
G18     41.6           12.3                6.3 +/-    1.45      16.8 +/-    1.45  0.070 / 0.110
G19     231.6          51.7               12.1 +/-    0.76      14.9 +/-    0.76  0.080 / 0.100
G28     25.2           59.4                8.6 +/-    0.32       9.8 +/-    0.32  0.040 / 0.040
G30     143.2          50.4                9.7 +/-    0.80      12.2 +/-    0.80  0.030 / 0.030